A239557 Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-7,...,7}.

1, 1, 1, 2, 4, 8, 16, 31, 61, 120, 235, 460, 901, 1769, 3471, 6811, 13367, 26236, 51497, 101079, 198399, 389428, 764384, 1500372, 2945008, 5780612, 11346484, 22271478, 43715623, 85807323, 168427136, 330597667, 648914509, 1273723636, 2500131931, 4907390780

Offset

0,4

Links

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Crossrefs

Column k=7 of A239550.

Sequence in context: A192656 A128761 A332726 * A001591 A194628 A003240

Adjacent sequences: A239554 A239555 A239556 * A239558 A239559 A239560

Keyword

nonn

Author

Alois P. Heinz, Mar 21 2014

Status

approved