A211358 Triangle read by rows: T(n,k) is the number of partitions up to rotation and reflection of an n-set that contain k singleton blocks.

1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 3, 1, 2, 0, 1, 3, 4, 2, 2, 0, 1, 12, 7, 11, 3, 3, 0, 1, 20, 28, 21, 16, 4, 3, 0, 1, 81, 89, 101, 43, 30, 5, 4, 0, 1, 238, 395, 356, 223, 86, 40, 7, 4, 0, 1, 1079, 1757, 1783, 1004, 504, 148, 62, 8, 5, 0, 1

Offset

0,11

Links

Tilman Piesk, Table of n, a(n) for n = 0..77

Crossrefs

Sequence in context: A145738 A232802 A245201 * A211356 A176107 A327852

Adjacent sequences: A211355 A211356 A211357 * A211359 A211360 A211361

Keyword

nonn,tabl

Author

Tilman Piesk, Apr 12 2012

Status

approved