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 A281956 #17 Aug 21 2018 06:49:38 %S A281956 0,27,134656,56615355,6138243072,282390755580,7190065585152, %T A281956 118730950577595,1408531971420160,12872835457479666,95262154452748800, %U A281956 592216338844654972,3180419513581234176,15078667591360144440,64208193499209765888,248996850497620053435 %N A281956 a(n) = (A013969(n) - A037946(n))/77683. %H A281956 Seiichi Manyama, <a href="/A281956/b281956.txt">Table of n, a(n) for n = 1..10000</a> %e A281956 a(1) = (1 - 1)/77683 = 0. %e A281956 a(2) = (2097153 - (-288))/77683 = 27. %e A281956 a(3) = (10460353204 - (-128844))/77683 = 134656. %Y A281956 Cf. A013969, A027860, A037946, A281788, A281876, A281928. %K A281956 nonn %O A281956 1,2 %A A281956 _Seiichi Manyama_, Feb 03 2017