A300678 - OEIS

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A300678

Number of nX4 0..1 arrays with every element equal to 0, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 10, 11, 28, 80, 245, 729, 2604, 8579, 27943, 95535, 322511, 1083870, 3675083, 12455625, 42129388, 142706185, 483725646, 1638434358, 5551260311, 18812259092, 63741708473, 215983981369, 731885089125, 2480017406380, 8403581958869

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OFFSET

1,2

COMMENTS

Column 4 of A300682.

LINKS

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

R. H. Hardin, Empirical recurrence of order 82

FORMULA

Empirical recurrence of order 82 (see link above)

EXAMPLE

Some solutions for n=5