A276726 - OEIS

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A276726

Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most ten elements.

1, 1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 562595, 2504665, 10579224, 43453459, 176472854, 716369167, 2927448727, 12099445274, 50734619570, 216264854789, 928045216933, 3986352066095, 17086933963355, 72987960721209, 310631150855373, 1317808552742134

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OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..512

Pierpaolo Natalini, Paolo Emilio Ricci, New Bell-Sheffer Polynomial Sets, Axioms 2018, 7(4), 71.

Wikipedia, Partition of a set

CROSSREFS

Column k=10 of A276719.

Cf. A276844, A276900.

Sequence in context: A192126 A229226 A343671 * A287588 A287281 A287259

Adjacent sequences: A276723 A276724 A276725 * A276727 A276728 A276729

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Sep 16 2016

STATUS

approved