A305779 Number of set partitions of [n] with alternating parity of elements and exactly five blocks.

1, 5, 19, 62, 204, 627, 2006, 6045, 19091, 56804, 177431, 523072, 1618006, 4739853, 14544372, 42440871, 129419597, 376877914, 1143885829, 3328765378, 10068808024, 29308488795, 88433869354, 257651383313, 776063514999, 2264100874960, 6811218232163, 19903182431380

Offset: 5

Author

Alois P. Heinz, Jun 10 2018

Keywords

• nonn

Links

• Wikipedia, Partition of a set

Crossrefs

Column k=5 of A274581.