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A254237 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically 1
10684, 38392, 195528, 970333, 3702284, 13376848, 46946080, 151691950, 473298612, 1441563263, 4285234118, 12549667259, 36365093642, 104261277810, 296592191300, 838536063660, 2358010298036, 6602060964243, 18419200796892, 51230079582293 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A254242

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A212075 A257421 A257428 * A207282 A207478 A207534

Adjacent sequences:  A254234 A254235 A254236 * A254238 A254239 A254240

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2015

STATUS

approved

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Last modified December 14 22:42 EST 2019. Contains 329987 sequences. (Running on oeis4.)