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 A294854 #4 Nov 09 2017 19:34:39
%S A294854 1,1,1716,46570140,8251690444250,6078597035484932995,
%T A294854 14138484434475011392912026,86237678200608256132213084584295,
%U A294854 1206534243283932582765850205674424343577,34994508245963099403565066291175900528344592700
%N A294854 Number of compositions (ordered partitions) of 1 into exactly 6*n+1 powers of 1/7.
%H A294854 Alois P. Heinz, <a href="/A294854/b294854.txt">Table of n, a(n) for n = 0..90</a>
%F A294854 a(n) = [x^(7^n)] (Sum_{j=0..6*n+1} x^(7^j))^(6*n+1).
%Y A294854 Column k=6 of A294746.
%K A294854 nonn
%O A294854 0,3
%A A294854 _Alois P. Heinz_, Nov 09 2017