A253992 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

3644672, 43840181, 890259584, 20976836853, 431011794558, 9417047685594, 214599818292970, 4763204685284070, 105382980758778328, 2352723588969755035, 52407266256039457556, 1163450914128007674788, 25860536986335538468356

Offset

1,1

Comments

Column 7 of A253993

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A053501 A229677 A350335 * A253999 A258909 A090074

Adjacent sequences: A253989 A253990 A253991 * A253993 A253994 A253995

Keyword

nonn

Author

R. H. Hardin, Jan 21 2015

Status

approved