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Sylvester's sequence: Difference between revisions
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</pre>
=={{header|Swift}}==
Using mkrd's BigNumber library.
<lang swift>import BigNumber
func sylvester(n: Int) -> BInt {
var a = BInt(2)
for _ in 0..<n {
a = a * a - a + 1
}
return a
}
var sum = BDouble(0)
for n in 0..<10 {
let syl = sylvester(n: n)
sum += BDouble(1) / BDouble(syl)
print(syl)
}
print("Sum of the reciprocals of first ten in sequence: \(sum)")</lang>
{{out}}
<pre>2
3
7
43
1807
3263443
10650056950807
113423713055421844361000443
12864938683278671740537145998360961546653259485195807
165506647324519964198468195444439180017513152706377497841851388766535868639572406808911988131737645185443
Sum of the reciprocals of first ten in sequence: 27392450308603031423410234291674686281194364367580914627947367941608692026226993634332118404582438634929548737283992369758487974306317730580753883429460344956410077034761330476016739454649828385541500213920805/27392450308603031423410234291674686281194364367580914627947367941608692026226993634332118404582438634929548737283992369758487974306317730580753883429460344956410077034761330476016739454649828385541500213920806</pre>
=={{header|Verilog}}==
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