A227673 - OEIS

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A227673

Number of lattice paths from {n}^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, 4, 320, 1281696, 482913033152, 27297846037161958056, 337320253484345016223956919936, 1248760044848501400078426452469652899962528, 1817025580455577353700768095528219275036151622984555026720

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..9.

EXAMPLE

a(0) = 1: () .

a(1) = 1: (1)-(0) .

. (1,2) (0,1)

. / \ / \

a(2) = 4: (2,2) (1,1) (0,0) .

. \ / \ /