A294854 Number of compositions (ordered partitions) of 1 into exactly 6*n+1 powers of 1/7.

1, 1, 1716, 46570140, 8251690444250, 6078597035484932995, 14138484434475011392912026, 86237678200608256132213084584295, 1206534243283932582765850205674424343577, 34994508245963099403565066291175900528344592700

Offset: 0

Author

Alois P. Heinz, Nov 09 2017

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..90

Crossrefs

Column k=6 of A294746.

Formula

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