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.
%I A102910 #15 Jul 24 2025 03:25:44 %S A102910 13, %T A102910 2524354896707237777317531408904915934954260592348873615264892578133 %N A102910 Primes of the form 5^k + 8. %C A102910 The next term, 5^(335) + 8, is too large to include. %H A102910 Amiram Eldar, <a href="/A102910/b102910.txt">Table of n, a(n) for n = 1..3</a> %p A102910 a:=proc(n) if isprime(5^n+8)=true then [n,5^n+8] else fi end: seq(a(n),n=1..400); # yields also the value of n %t A102910 a = Delete[Union[Flatten[Table[If [PrimeQ[5^n + 7 + 1] == True, 5^n + 7 + 1, 0], {n, 1, 400}]]], 1] %Y A102910 Cf. A217133 (values of k). %K A102910 nonn,bref %O A102910 1,1 %A A102910 _Roger L. Bagula_, Mar 01 2005 %E A102910 Edited by _N. J. A. Sloane_, Apr 16 2006 %E A102910 Verified by _Don Reble_, Apr 25 2006