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A235207

Number of (n+1) X (3+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).

5696, 18444, 61160, 215996, 781040, 2971196, 11553392, 46833260, 193465560, 826218532, 3581539136, 15932122292, 71644936160, 328631733908, 1518363127144, 7123179412380, 33563057736176, 160050497011676, 764880136880880

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

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 62

FORMULA

Empirical recurrence of order 62 (see link above).

EXAMPLE

Some solutions for n=3:

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

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