A239556 Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-6,...,6}.

1, 1, 1, 2, 4, 8, 16, 31, 60, 117, 228, 441, 860, 1678, 3267, 6368, 12413, 24192, 47158, 91929, 179190, 349306, 680925, 1327341, 2587450, 5043845, 9832184, 19166364, 37361945, 72831417, 141973854, 276756612, 539495115, 1051664254, 2050060645, 3996283405

Offset

0,4

Links

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

Crossrefs

Column k=6 of A239550.

Sequence in context: A209888 A210021 A226188 * A152718 A347776 A006775

Adjacent sequences: A239553 A239554 A239555 * A239557 A239558 A239559

Keyword

nonn

Author

Alois P. Heinz, Mar 21 2014

Status

approved