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A255749

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

512, 7765, 51064, 118925, 196744, 473630, 739776, 2509233, 2833848, 15683280, 11443688, 103505234, 46550488, 787249560, 193199064, 5867658716, 807118704, 47135689832, 3371471992, 363872055032, 14120529208, 2966121353072

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

OFFSET

1,1

COMMENTS

Diagonal of A255756.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..24

EXAMPLE

Some solutions for n=4

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

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

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