A239559 Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-9,...,9}.

1, 1, 1, 2, 4, 8, 16, 32, 63, 125, 248, 491, 973, 1929, 3819, 7571, 15010, 29749, 58971, 116904, 231735, 459378, 910649, 1805210, 3578545, 7093916, 14062567, 27876856, 55261542, 109547385, 217160649, 430487234, 853373928, 1691681061, 3353494567, 6647781207

Offset

0,4

Links

Table of n, a(n) for n=0..35.

Crossrefs

Column k=9 of A239550.

Sequence in context: A001949 A210031 A239558 * A001592 A194629 A251710

Adjacent sequences: A239556 A239557 A239558 * A239560 A239561 A239562

Keyword

nonn

Author

Alois P. Heinz, Mar 21 2014

Status

approved