A227660 Number of lattice paths from {6}^n to {0}^n using steps that decrement one component by 1 such that for each point (p_1,p_2,...,p_n) we have abs(p_{i}-p_{i+1}) <= 1.

1, 1, 64, 123208, 1831288096, 122911984813568, 27297846037161958056, 16391903881902996952724768, 23066495371480810626495005438496, 68371528221534300846360580266415146176, 392997779138060823651445903318712755280168960, 4100456330337958604264976205090832646574842298883968

Offset

0,3

Links

Table of n, a(n) for n=0..11.

Example

a(2) = 2^6 = 64.

Crossrefs

Row n=6 of A227655.

Cf. A000079.

Sequence in context: A159410 A351781 A016878 * A029753 A036533 A139565

Adjacent sequences: A227657 A227658 A227659 * A227661 A227662 A227663

Keyword

nonn

Author

Alois P. Heinz, Jul 19 2013

Status

approved