A294058 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals nine.

4140, 49697, 455371, 3756660, 29303172, 220506007, 1616326536, 11602806171, 81849519019, 569127774789, 3911294945801, 26619412609350, 179676383034601, 1204239150572143, 8022049955315373, 53157083625640443, 350620610289045902, 2303382775646163099, 15078600881355124553

Offset

10,1

Links

Alois P. Heinz, Table of n, a(n) for n = 10..1000

Formula

a(n) = A287281(n) - A287280(n).

Crossrefs

Column k=9 of A287213.

Cf. A287280, A287281.

Sequence in context: A251650 A270772 A320559 * A255948 A273658 A107541

Adjacent sequences: A294055 A294056 A294057 * A294059 A294060 A294061

Keyword

nonn,easy

Author

Alois P. Heinz, Oct 22 2017

Status

approved