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 A031130 #5 May 01 2017 13:45:17 %S A031130 14,44,117,256,521,974,1751,2997,4986,8042,12692,19583,29718,44323, %T A031130 65209,94641,135804,192698,270821,377047,520623,713122,969783,1309645, %U A031130 1757446,2343930,3108552,4100219 %N A031130 Number of proper factorizations of p1^n*p2^7, where p1 and p2 are distinct primes. %H A031130 Ray Chandler, <a href="/A031130/b031130.txt">Table of n, a(n) for n = 0..200</a> %F A031130 a(n) = A002756(n) - 1 = A028422(2^n*3^7). - _Ray Chandler_, May 01 2017 %Y A031130 Cf. A002756, A028422. %K A031130 nonn %O A031130 0,1 %A A031130 _Jeff Burch_ %E A031130 Offset changed to 0 and more terms added by _Ray Chandler_, May 01 2017