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URL: https://oeis.org/A294854

⇱ A294854 - OEIS

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A294854
Number of compositions (ordered partitions) of 1 into exactly 6*n+1 powers of 1/7.
2
1, 1, 1716, 46570140, 8251690444250, 6078597035484932995, 14138484434475011392912026, 86237678200608256132213084584295, 1206534243283932582765850205674424343577, 34994508245963099403565066291175900528344592700
OFFSET
0,3
LINKS
FORMULA
a(n) = [x^(7^n)] (Sum_{j=0..6*n+1} x^(7^j))^(6*n+1).
CROSSREFS
Column k=6 of A294746.
Sequence in context: A140910 A208620 A365027 * A025039 A068303 A212929
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 09 2017
STATUS
approved