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 A030637 #26 Jun 19 2016 02:07:10 %S A030637 262144,387420489,3814697265625,1628413597910449,5559917313492231481, %T A030637 112455406951957393129,14063084452067724991009, %U A030637 104127350297911241532841,3244150909895248285300369,210457284365172120330305161,699053619999045038539170241 %N A030637 Numbers with 19 divisors. %C A030637 18th powers of primes. The n-th number with p divisors is equal to the n-th prime raised to power p-1, where p is prime. - _Omar E. Pol_, May 06 2008 %H A030637 R. J. Mathar, <a href="/A030637/b030637.txt">Table of n, a(n) for n = 1..1000</a> %F A030637 a(n)=A000040(n)^(19-1)=A000040(n)^(18). - _Omar E. Pol_, May 06 2008 %t A030637 Prime[Range[18]]^18 (* _Vladimir Joseph Stephan Orlovsky_, May 05 2011 *) %o A030637 (PARI) is(n)=isprimepower(n)==18 \\ _Charles R Greathouse IV_, Jun 19 2016 %Y A030637 Cf. A000040, A030634, A030635, A030636. %K A030637 nonn,easy %O A030637 1,1 %A A030637 _Jeff Burch_ %E A030637 a(6) corrected, Mar 26 2007