A254808 Number of (5+2) X (n+2) 0..1 arrays with every 3 X 3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

178752, 479464, 1200192, 3369689, 11392932, 36042356, 105040512, 290370835, 772044120, 2117387624, 5674362710, 15790193498, 43125762638, 123241759098, 352132541188, 1030454500599, 3001800742468, 8850561724548, 26119976736578

Offset

1,1

Comments

Row 5 of A254804.

Links

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

Example

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

Crossrefs

Cf. A254804.

Sequence in context: A233475 A243901 A254801 * A253817 A056748 A247113

Adjacent sequences: A254805 A254806 A254807 * A254809 A254810 A254811

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved