A257430 - OEIS

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A257430

Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

150016, 403951, 1290910, 4442466, 12316842, 39029574, 121832476, 359681533, 1066288882, 3126365543, 8921825684, 25527972436, 72826289929, 206321352365, 583012447599, 1642831496480, 4611094251243, 12910731728619, 36064024641002

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

OFFSET

1,1

COMMENTS

Row 5 of A257426

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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