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A254889 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically 1
9560, 35296, 171400, 822072, 2580056, 8115610, 23589212, 59995430, 145387986, 331801795, 719425086, 1522572859, 3138860414, 6329390631, 12570672314, 24624380444, 47807796436, 92338992457, 177468932212, 339829018669 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A254894

LINKS

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

EXAMPLE

Some solutions for n=3

..0..0..0..0..1....0..0..1..1..1....0..0..1..0..1....0..1..0..0..1

..1..0..0..1..1....0..0..0..0..0....0..0..0..0..0....0..0..0..0..1

..1..1..1..1..1....0..0..0..1..1....0..0..0..0..0....0..1..1..1..1

..0..1..0..1..1....1..0..1..1..0....1..1..0..1..1....0..1..1..1..1

..0..1..0..1..1....0..1..1..0..0....0..0..0..1..1....0..0..0..0..1

CROSSREFS

Sequence in context: A136479 A254015 A254022 * A133449 A275687 A210409

Adjacent sequences:  A254886 A254887 A254888 * A254890 A254891 A254892

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 10 2015

STATUS

approved

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Last modified September 27 03:24 EDT 2022. Contains 357051 sequences. (Running on oeis4.)