Tau number: Difference between revisions
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</pre> |
</pre> |
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=={{header|CLU}}== |
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<lang clu>% Count the divisors of [1..N] |
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count_divisors = proc (n: int) returns (sequence[int]) |
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divs: array[int] := array[int]$fill(1, n, 1) |
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for i: int in int$from_to(2, n) do |
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for j: int in int$from_to_by(i, n, i) do |
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divs[j] := divs[j] + 1 |
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end |
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end |
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return(sequence[int]$a2s(divs)) |
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end count_divisors |
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% Find Tau numbers up to a given limit |
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tau_numbers = iter (lim: int) yields (int) |
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divs: sequence[int] := count_divisors(lim) |
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n: int := 0 |
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while n < lim do |
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n := n + 1 |
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if n // divs[n] = 0 then yield(n) end |
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end |
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end tau_numbers |
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% Show the first 100 Tau numbers |
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start_up = proc () |
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po: stream := stream$primary_output() |
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seen: int := 0 |
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for n: int in tau_numbers(1100) do |
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seen := seen + 1 |
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stream$putright(po, int$unparse(n), 5) |
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if seen // 10 = 0 then stream$putl(po, "") end |
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if seen >= 100 then break end |
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end |
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end start_up</lang> |
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{{out}} |
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<pre> 1 2 8 9 12 18 24 36 40 56 |
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60 72 80 84 88 96 104 108 128 132 |
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136 152 156 180 184 204 225 228 232 240 |
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248 252 276 288 296 328 344 348 360 372 |
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376 384 396 424 441 444 448 450 468 472 |
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480 488 492 504 516 536 560 564 568 584 |
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600 612 625 632 636 640 664 672 684 708 |
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712 720 732 776 792 804 808 824 828 852 |
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856 864 872 876 880 882 896 904 936 948 |
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972 996 1016 1040 1044 1048 1056 1068 1089 1096</pre> |
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=={{header|Cowgol}}== |
=={{header|Cowgol}}== |
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972 996 1016 1040 1044 1048 1056 1068 1089 1096</pre> |
972 996 1016 1040 1044 1048 1056 1068 1089 1096</pre> |
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=={{header|D}}== |
=={{header|D}}== |
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