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 A062628 #17 Jul 04 2021 09:00:31 %S A062628 17,23,421,1303,6163,17117,18439,74521 %N A062628 Numbers k such that 62^k - 61^k is prime. %C A062628 Terms greater than 1000 are often only strong pseudoprimes. %C A062628 All terms are primes. - _Robert Price_, May 07 2013 %C A062628 a(9) > 10^5. - _Robert Price_, May 07 2013 %o A062628 (PARI) is(n)=ispseudoprime(62^n-61^n) \\ _Charles R Greathouse IV_, Jun 13 2017 %Y A062628 Cf. A000043, A057468, A059801, A059802, A062572-A062666. %K A062628 nonn,hard %O A062628 1,1 %A A062628 _Mike Oakes_, May 18 2001, May 19 2001 %E A062628 a(6)-a(8) (Computer runs by Adam Marciniec) from _Robert Price_, May 07 2013