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Talk:Frobenius numbers

From Rosetta Code

title of this task[edit]

These are not Frobenius primes.   Indeed, some numbers of this series aren't prime.

According to OEIS,   they are known as   the Frobenius number of the numerical semi-group generated by prime(n) and prime(n+1)       (as noted in the OEIS entry A037165 by Victoria A. Sapko).     They are also known as   Frobenius numbers.     -- Gerard Schildberger (talk) 22:57, 1 April 2021 (UTC)

Thanks. I've gone ahead and moved the page to Frobenius numbers. --Chunes (talk) 05:25, 2 April 2021 (UTC)
However, it appears that Frobenius numbers are quite a bit more general than this. This sequence is the Frobenius numbers for a very specific input. --Chunes (talk) 05:35, 2 April 2021 (UTC)

task clarification[edit]

It appears that when the task's author stated:

      a(n) = prime(n)*prime(n+1) - prime(n) - prime(n+1), where prime(n) < 10,000 

it was meant to mean:

      a(n) = prime(n)*prime(n+1) - prime(n) - prime(n+1), where a(n)     < 10,000 


This is based on the output for the   Ring   example's output.     -- Gerard Schildberger (talk) 23:33, 1 April 2021 (UTC)


task wording[edit]

I think that the task description would read better with:

     FrobeniusNumber(n)  =  prime(n)*prime(n+1) - prime(n) - prime(n+1), where FrobeniusNumber(n) < 10,000 

instead of using   a(n).     -- Gerard Schildberger (talk) 23:48, 1 April 2021 (UTC)