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A294056 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals seven. 2
203, 2108, 16657, 117897, 783922, 4993579, 30785899, 185088952, 1091673665, 6342173645, 36398304558, 206815079839, 1165446105293, 6522388312404, 36291251200978, 200938029161451, 1107900649341124, 6086624218751214, 33335270870796943, 182080367445331011, 992214076623396046 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 27 12:51 EST 2021. Contains 349394 sequences. (Running on oeis4.)