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A254392 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
21304, 409051, 8533796, 174326376, 3575408117, 73650997253, 1515512093870, 31188009589764, 641966562516394, 13212911552237700, 271951256688591938, 5597467294539748181, 115210140169090180677, 2371319030494681940359 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 3 of A254390
LINKS
FORMULA
Empirical recurrence of order 68 (see link above)
EXAMPLE
Some solutions for n=1
..1..1..0....1..0..1....0..1..0....1..1..0....1..0..1....1..0..1....1..0..0
..1..0..1....0..0..1....0..1..1....1..1..0....0..0..1....0..1..1....1..0..0
..0..1..1....0..1..0....1..1..0....0..0..1....0..1..1....0..1..0....1..1..0
..1..1..1....1..1..1....1..1..1....1..0..1....1..1..1....1..1..0....0..1..0
..0..1..1....0..1..1....1..1..1....0..0..1....0..1..1....1..1..0....1..0..1
CROSSREFS
Sequence in context: A234408 A177857 A254385 * A253980 A349508 A250532
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2015
STATUS
approved

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Last modified February 26 06:43 EST 2024. Contains 370335 sequences. (Running on oeis4.)