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 A062611 #21 Jul 04 2021 08:43:23 %S A062611 2,5,151,223,313,1277,8447 %N A062611 Numbers k such that 45^k - 44^k is prime or a strong pseudoprime. %C A062611 a(8) > 10^5. - _Robert Price_, Jan 02 2013 %o A062611 (PARI) forprime(n=1,9999,ispseudoprime(45^n-44^n)&print1(n",")) \\ - _M. F. Hasler_, Sep 21 2013 %Y A062611 Cf. A000043, A057468, A059801-A059803, A062572-A062609, A215632, A062612-A062666. %K A062611 nonn,hard %O A062611 1,1 %A A062611 _Mike Oakes_, May 18 2001, May 19 2001 %E A062611 Edited by _M. F. Hasler_, Sep 21 2013