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 A281928 #22 Aug 21 2018 06:49:42 %S A281928 0,3,2944,391635,17392128,385866060,5303086848,51332824275, %T A281928 380176030720,2279635315794,11522261136000,50576242992268, %U A281928 197196432781824,695091512105880,2246019242126592,6728295917456595,18857917384178688,49830812542200039 %N A281928 a(n) = (A013965(n) - A037944(n))/43867. %H A281928 Seiichi Manyama, <a href="/A281928/b281928.txt">Table of n, a(n) for n = 1..10000</a> %e A281928 a(1) = (1 - 1)/43867 = 0. %e A281928 a(2) = (131073 - (-528))/43867 = 3. %e A281928 a(3) = (129140164 - (-4284))/43867 = 2944. %Y A281928 Cf. A013965, A027860, A037944, A281788, A281876, A281956. %K A281928 nonn %O A281928 1,2 %A A281928 _Seiichi Manyama_, Feb 02 2017