A234894 - OEIS

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A234894

Number of (n+1) X (4+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

16572, 115924, 743436, 5941320, 44518632, 385262124, 3064189932, 27702518548, 225962416092, 2102864178560, 17375211533100, 165422663167944, 1377710367593992, 13372892400690664, 111984980465312848

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

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..199

EXAMPLE

Some solutions for n=2:

5 6 4 6 4 3 1 4 2 4 5 6 3 4 2 2 5 1 4 3

0 2 1 4 1 5 2 6 3 6 0 2 0 2 1 1 3 0 2 0

4 5 3 5 3 2 0 3 1 5 3 6 5 6 4 3 4 2 5 4

CROSSREFS

Column 4 of A234898.