A271754 Number of set partitions of [n+3] such that n is the largest element of the last block.

0, 1, 10, 63, 365, 2110, 12521, 77133, 495408, 3321545, 23241681, 169563944, 1288195931, 10176462413, 83473288546, 709925146315, 6251616698625, 56926598141054, 535352734428349, 5193455071192121, 51913950093082800, 534160387907563869, 5651905462025615573

Offset

1,3

Links

Alois P. Heinz, Table of n, a(n) for n = 1..574

Wikipedia, Partition of a set

Formula

a(n) = A271466(n+3,n).

Example

a(3) = 10: 12456|3, 1456|23, 1456|2|3, 145|26|3, 146|25|3, 14|256|3, 156|24|3, 15|246|3, 16|245|3, 1|2456|3.

Crossrefs

A diagonal of A271466.

Sequence in context: A093953 A298067 A298716 * A075755 A046638 A101467

Adjacent sequences: A271751 A271752 A271753 * A271755 A271756 A271757

Keyword

nonn

Author

Alois P. Heinz, Apr 13 2016

Status

approved