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

Author

Alois P. Heinz, Oct 22 2017

Keywords

• nonn
• easy

Links

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

Crossrefs

Column k=7 of A287213.

Cf. A287278, A287279.

Formula

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