A255026 - OEIS

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A255026

Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 or 1 and no column sum 0 or 1

2853, 23077, 206739, 1669286, 13460633, 110131505, 896763036, 7301549016, 59570598618, 485457428280, 3954090473055, 32222610105483, 262627685087211, 2140187356615066, 17439608164244753, 142114394703257737

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

OFFSET

1,1

COMMENTS

Column 7 of A255027

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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