A294055 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals six.

52, 495, 3573, 22986, 138140, 791355, 4378359, 23619010, 124985133, 651528571, 3356054226, 17122003113, 86672668175, 435922323548, 2180749707230, 10860449611842, 53881317215173, 266455227999826, 1314042578677412, 6464913802646613, 31741357154688581, 155566738708385012

Offset

7,1

Links

Alois P. Heinz, Table of n, a(n) for n = 7..1000

Formula

a(n) = A287278(n) - A287277(n).

Crossrefs

Column k=6 of A287213.

Cf. A287277, A287278.

Sequence in context: A005946 A200549 A000527 * A285753 A100413 A221272

Adjacent sequences: A294052 A294053 A294054 * A294056 A294057 A294058

Keyword

nonn,easy

Author

Alois P. Heinz, Oct 22 2017

Status

approved