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A227671 Number of lattice paths from {n}^9 to {0}^9 using steps that decrement one component by 1 such that for each point (p_1,p_2,...,p_9) we have abs(p_{i}-p_{i+1}) <= 1. 2
1, 362880, 914570667792, 2618225365541294080, 7716228754248308194763776, 22936896882912935631904962898880, 68371528221534300846360580266415146176, 203989890816333447880297347963799273322740544, 608787871679690303320891056934368872583827110376320 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..100

EXAMPLE

a(1) = 9! = 362880.

CROSSREFS

Column k=9 of A227655.

Cf. A000142.

Sequence in context: A246617 A246220 A160319 * A172536 A287085 A071551

Adjacent sequences:  A227668 A227669 A227670 * A227672 A227673 A227674

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 19 2013

STATUS

approved

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Last modified October 16 14:35 EDT 2018. Contains 316263 sequences. (Running on oeis4.)