A244889 Second column of triangle in A244888.

1, -6, 36, -229, 1574, -11706, 93831

Offset

2,2

Comments

Remmel (2014) asks for a formula.

Links

Table of n, a(n) for n=2..8.

Jeffrey B. Remmel, Consecutive Up-down Patterns in Up-down Permutations, Electron. J. Combin., 21 (2014), #P3.2.

Crossrefs

Cf. A244888, A125273.

Sequence in context: A085687 A242136 A129327 * A344269 A144819 A284647

Adjacent sequences: A244886 A244887 A244888 * A244890 A244891 A244892

Keyword

sign,more

Author

N. J. A. Sloane, Jul 12 2014

Status

approved