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A235208

Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

27812, 76112, 215996, 672256, 2154516, 7402144, 26061700, 96901472, 368028508, 1459917480, 5897896244, 24670254104, 104750603428, 457238180840, 2019073139228, 9112536852800, 41470836368596, 192014376762880

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

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..121

EXAMPLE

Some solutions for n=2:

3 2 4 1 5 0 4 1 4 2 1 7 6 7 6 6 3 6 3 7

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

3 2 4 1 5 3 7 4 7 5 6 2 1 2 1 6 3 6 3 7

CROSSREFS

Column 4 of A235212.