A257192 Number of (4+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

39891, 213631, 1661786, 12941212, 106574293, 916707473, 7875023930, 66916972975, 571865228504, 4885833171477, 41691336304950, 355572944704403, 3034273391475241, 25884761299109748, 220809323036102848

Offset

1,1

Comments

Row 4 of A257189.

Links

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

Example

Some solutions for n=1
..0..1..1....1..0..1....1..1..1....0..0..0....0..1..0....1..1..0....0..1..1
..1..1..1....0..0..0....0..0..0....0..0..0....0..0..1....1..1..0....1..1..0
..1..1..1....0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....1..1..1
..0..1..0....1..0..0....0..0..1....0..0..0....1..1..1....1..0..1....1..0..1
..0..1..1....1..0..1....0..0..1....0..0..1....0..1..1....1..1..1....0..0..1
..0..0..1....1..1..0....0..1..1....1..1..0....0..0..1....1..0..1....1..0..1

Crossrefs

Cf. A257189.

Sequence in context: A234920 A116220 A103809 * A257185 A254985 A210386

Adjacent sequences: A257189 A257190 A257191 * A257193 A257194 A257195

Keyword

nonn

Author

R. H. Hardin, Apr 17 2015

Status

approved