A274866 Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of nine.

1, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262400, 525312, 1051648, 2105344, 4214784, 8437760, 16891904, 33816576, 67698688, 135726080, 272175872, 545883008, 1094922880, 2196262528, 4405472896, 8836975232

Offset

0,3

Links

Table of n, a(n) for n=0..34.

Crossrefs

Column k=9 of A274859.

Sequence in context: A171449 A122803 A274867 * A274865 A364040 A050732

Adjacent sequences: A274863 A274864 A274865 * A274867 A274868 A274869

Keyword

nonn

Author

Alois P. Heinz, Jul 09 2016

Status

approved