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 A294056 #6 Oct 22 2017 12:56:12 %S A294056 203,2108,16657,117897,783922,4993579,30785899,185088952,1091673665, %T A294056 6342173645,36398304558,206815079839,1165446105293,6522388312404, %U A294056 36291251200978,200938029161451,1107900649341124,6086624218751214,33335270870796943,182080367445331011,992214076623396046 %N A294056 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals seven. %H A294056 Alois P. Heinz, <a href="/A294056/b294056.txt">Table of n, a(n) for n = 8..1000</a> %F A294056 a(n) = A287279(n) - A287278(n). %Y A294056 Column k=7 of A287213. %Y A294056 Cf. A287278, A287279. %K A294056 nonn,easy %O A294056 8,1 %A A294056 _Alois P. Heinz_, Oct 22 2017