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A258535
Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
1302500, 5390288, 11711440, 49299000, 159909048, 592438330, 2229175182, 7742054643, 25814320832, 91341056498, 319886182796, 1040366097283, 3692207243282, 13054765725797, 39905793352168, 145629634326028
OFFSET
1,1
COMMENTS
Row 6 of A258530
FORMULA
Empirical recurrence of order 71 (see link above)
EXAMPLE
Some solutions for n=1
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....1..0..1....0..0..1....1..0..0....0..0..1....1..0..1....0..0..1
..1..0..1....0..0..1....0..0..1....0..0..0....0..0..1....0..0..1....1..0..0
..0..0..0....0..0..1....0..0..1....0..1..0....0..0..0....1..0..0....0..0..1
..1..1..0....1..0..1....1..0..0....1..1..0....0..1..0....1..0..0....0..0..1
..1..0..0....0..0..1....1..1..0....1..0..0....0..1..1....1..1..0....0..0..0
..0..1..1....1..1..1....1..0..0....1..1..0....0..1..1....1..1..0....1..1..0
..1..1..1....1..0..0....0..1..1....0..0..1....1..1..0....1..0..0....0..1..1
CROSSREFS
Sequence in context: A345084 A262531 A250830 * A258528 A254920 A002806
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 02 2015
STATUS
approved