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 A062654 #19 Nov 01 2018 21:35:52 %S A062654 5,7,19,241,607,74047 %N A062654 Numbers k such that 88^k - 87^k is prime or a strong pseudoprime. %C A062654 All terms must be prime. - _M. F. Hasler_, Sep 21 2013 %C A062654 a(7) > 10^5. - _Robert Price_, May 28 2015 %t A062654 Select[Range[0, 1000], PrimeQ[88^# - 87^#] &] (* _Robert Price_, May 28 2015 *) %o A062654 (PARI) is(n)=ispseudoprime(88^n-87^n) \\ _Charles R Greathouse IV_, Jun 13 2017 %Y A062654 Cf. A000043, A057468, A059801, A059802, A059803, A062572-A062652, A215536, A062655-A062666. %K A062654 nonn,hard %O A062654 1,1 %A A062654 _Mike Oakes_, May 18 2001, May 19 2001 %E A062654 Edited by _M. F. Hasler_, Sep 21 2013 %E A062654 a(6) from _Robert Price_, May 28 2015 (computer run by Adam Marciniec)