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A254555 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
12260, 39661, 129677, 388056, 1194944, 3557566, 10792398, 31935630, 94243724, 273661647, 792918304, 2285081398, 6585392329, 18959530683, 54620617680, 157367672295, 453569621698, 1307460827102, 3769569531795, 10868903441473 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A254553

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A252500 A252497 A254548 * A254478 A186046 A358320

Adjacent sequences: A254552 A254553 A254554 * A254556 A254557 A254558

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2015

STATUS

approved

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Last modified November 29 10:15 EST 2022. Contains 358423 sequences. (Running on oeis4.)