A294056 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals seven.

203, 2108, 16657, 117897, 783922, 4993579, 30785899, 185088952, 1091673665, 6342173645, 36398304558, 206815079839, 1165446105293, 6522388312404, 36291251200978, 200938029161451, 1107900649341124, 6086624218751214, 33335270870796943, 182080367445331011, 992214076623396046

Offset

8,1

Links

Alois P. Heinz, Table of n, a(n) for n = 8..1000

Formula

a(n) = A287279(n) - A287278(n).

Crossrefs

Column k=7 of A287213.

Cf. A287278, A287279.

Sequence in context: A272390 A320557 A270770 * A255946 A273656 A331129

Adjacent sequences: A294053 A294054 A294055 * A294057 A294058 A294059

Keyword

nonn,easy

Author

Alois P. Heinz, Oct 22 2017

Status

approved