%I #4 Nov 09 2017 19:34:39

%S 1,1,1716,46570140,8251690444250,6078597035484932995,

%T 14138484434475011392912026,86237678200608256132213084584295,

%U 1206534243283932582765850205674424343577,34994508245963099403565066291175900528344592700

%N Number of compositions (ordered partitions) of 1 into exactly 6*n+1 powers of 1/7.

%H Alois P. Heinz, <a href="/A294854/b294854.txt">Table of n, a(n) for n = 0..90</a>

%F a(n) = [x^(7^n)] (Sum_{j=0..6*n+1} x^(7^j))^(6*n+1).

%Y Column k=6 of A294746.

%K nonn

%O 0,3

%A _Alois P. Heinz_, Nov 09 2017