A246227 Number of permutations of [n] with exactly seven (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down.

171470, 0, 0, 0, 0, 0, 64556303422787162, 0, 0, 0, 0, 0, 53330837507335912360442, 0, 0, 0, 510289061406183066554328264, 0, 0, 253410955069956058210029266688, 0, 3671524606283906345376361339863458448, 41993835528908638694682902028400861

Offset

15,1

Links

Alois P. Heinz, Table of n, a(n) for n = 15..130

Crossrefs

Column k=7 of A242783.

Sequence in context: A236985 A234088 A236498 * A206115 A204730 A376503

Adjacent sequences: A246224 A246225 A246226 * A246228 A246229 A246230

Keyword

nonn

Author

Alois P. Heinz, Aug 19 2014

Status

approved