A258606 - OEIS

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A258606

Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum

76729, 567009, 2729104, 16806958, 90782784, 474650022, 2276816656, 10535922971, 45716854225, 193196028123, 780713616400, 3089065462326, 11835781060489, 44551750251450, 163755454109809, 593051074898232, 2109303841956964

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

OFFSET

1,1

COMMENTS

Column 2 of A258612

LINKS

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

EXAMPLE

Some solutions for n=1

..2..2..0..2....1..1..1..1....2..0..0..0....2..0..2..0....2..2..2..2

..2..2..2..2....1..2..1..1....0..0..2..2....0..1..2..2....2..2..1..2

..0..0..1..2....0..1..0..2....0..1..0..1....1..1..1..2....0..0..1..0