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A254014 Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
2540, 7212, 26370, 98002, 279743, 774662, 2035893, 5114873, 12474341, 29590558, 68901604, 158137068, 357684484, 800611865, 1776191086, 3909310915, 8548743880, 18587419029, 40212191986, 86599353650, 185779037285, 397204639125 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A254020
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..0..0..0....1..0..1..1....0..1..1..0....0..0..1..1
..1..0..0..0....0..0..0..0....0..0..0..1....0..0..0..0....1..0..0..0
..0..0..0..1....1..0..0..0....0..0..0..1....0..1..1..0....0..0..1..1
..1..0..0..1....0..0..1..1....1..1..1..0....0..0..0..1....1..1..1..0
..0..0..1..1....0..0..1..1....0..1..1..1....1..1..1..1....1..1..1..1
..0..1..1..0....1..1..1..0....0..1..0..0....1..0..1..1....1..1..0..0
CROSSREFS
Sequence in context: A206596 A334932 A254021 * A254888 A248997 A234407
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 22 2015
STATUS
approved

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Last modified May 30 03:30 EDT 2024. Contains 372957 sequences. (Running on oeis4.)