A240516 - OEIS

A240516

Number of n X 5 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order.

8, 21, 73, 326, 1376, 6205, 28942, 135093, 636475, 3024792, 14429369, 69010353, 330906118, 1589431389, 7642628408, 36779710534, 177110221193, 853219818189, 4111568990816, 19817506062480, 95533854083563, 460587995304966

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OFFSET

1,1

COMMENTS

Column 5 of A240519.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..1..1..0..1....0..1..1..1..0....0..0..0..1..0....0..1..0..1..0

..1..0..0..0..0....1..0..1..0..0....1..0..1..0..1....1..1..1..0..1

..0..1..0..1..1....0..1..0..1..0....0..1..0..0..0....0..1..0..1..1