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 A274361 #5 Jun 19 2016 20:18:33 %S A274361 5264,7695,13040,27135,33615,38960,41391,44144,54351,55808,62127, %T A274361 64719,70064,72495,77679,100624,101007,108783,108944,116720,124335, %U A274361 124496,132111,132272,139887,145232,160784,165807,176336,186704,191888,199375,202095 %N A274361 Numbers n such that n and n+1 both have 20 divisors. %H A274361 Charles R Greathouse IV, <a href="/A274361/b274361.txt">Table of n, a(n) for n = 1..10000</a> %o A274361 (PARI) is(n)=numdiv(n)==20 && numdiv(n+1)==20 %Y A274361 Intersection of A005237 and A030638. %Y A274361 Cf. A000005, A274357. %K A274361 nonn %O A274361 1,1 %A A274361 _Charles R Greathouse IV_, Jun 19 2016