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 A294852 #4 Nov 09 2017 19:13:08
%S A294852 1,1,126,90376,216456376,1303699790001,16596702491586251,
%T A294852 396695587555058190126,16336038155342083651640376,
%U A294852 1085776473843765315524916060126,110656003660578876500875377620844376,16592064238583710535773294961607940956876
%N A294852 Number of compositions (ordered partitions) of 1 into exactly 4*n+1 powers of 1/5.
%H A294852 Alois P. Heinz, <a href="/A294852/b294852.txt">Table of n, a(n) for n = 0..128</a>
%F A294852 a(n) = [x^(5^n)] (Sum_{j=0..4*n+1} x^(5^j))^(4*n+1).
%Y A294852 Column k=4 of A294746.
%K A294852 nonn
%O A294852 0,3
%A A294852 _Alois P. Heinz_, Nov 09 2017