cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A072599 Numbers n such that (n!)^2 - prime(n) is prime.

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%I A072599 #13 Aug 24 2014 10:07:50
%S A072599 3,4,5,6,7,16,109,116,232,877,934
%N A072599 Numbers n such that (n!)^2 - prime(n) is prime.
%C A072599 Values associated with 16, 109, 116 and 232 certified prime with Primo. These primes have lengths 27, 353, 382 and 900 digits, respectively.
%C A072599 a(10)-a(11) associated with probable primes. - _Robert Price_, Aug 23 2014
%C A072599 a(12) > 15300. - _Robert Price_, Aug 23 2014
%e A072599 (5!)^2 - prime(5) = 120^2 - 11 = 14400 - 11 = 14389 is prime, so 5 is a term.
%o A072599 (PARI) for(n=1,800,if(isprime((n!)^2-prime(n)),print1(n,",")))
%Y A072599 Cf. A064769 (n such that (n!)^2 + p(n) is prime).
%K A072599 nonn,more,hard
%O A072599 1,1
%A A072599 _Rick L. Shepherd_, Jun 25 2002
%E A072599 a(10)-a(11) from _Robert Price_, Aug 23 2014