A294057 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals eight.

877, 9831, 84026, 645307, 4673602, 32556486, 220262805, 1455625827, 9440565264, 60325621897, 380858965018, 2380570287207, 14755381094276, 90809920042072, 555505015465351, 3380585458615769, 20481290849184365, 123607231008549590, 743480537600356891, 4458809280258460139

Offset: 9

Author

Alois P. Heinz, Oct 22 2017

Keywords

• nonn
• easy

Links

• Alois P. Heinz, Table of n, a(n) for n = 9..1000

Crossrefs

Column k=8 of A287213.

Cf. A287279, A287280.

Formula

a(n) = A287280(n) - A287279(n).