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A254238 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically 1
41140, 167637, 970333, 5606832, 21582041, 80104299, 277964612, 863193207, 2642194905, 7927642723, 23138956240, 66674563382, 190259311816, 537311258526, 1507557132590, 4209998576739, 11703042069925, 32423030456075 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254242

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A234546 A257422 A257429 * A286891 A183667 A188488

Adjacent sequences:  A254235 A254236 A254237 * A254239 A254240 A254241

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2015

STATUS

approved

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Last modified January 26 23:05 EST 2020. Contains 331289 sequences. (Running on oeis4.)