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A257269 Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum 0
13089924, 380991361, 4497848356, 59496966400, 498831438400, 4488101568196, 31552778558596, 232279485155524, 1489426595748100, 9809415221570064, 59889828344832256, 371397537426275721, 2213810688640896016 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A257270

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=1

..0..0..0..0..2..1....0..0..0..1..1..0....0..0..0..2..0..0....0..0..0..2..2..0

..0..0..1..1..0..2....1..2..0..2..1..2....1..1..0..2..2..2....0..1..1..1..1..0

..0..0..0..0..2..2....0..0..1..1..2..2....0..0..0..2..1..1....0..0..0..2..2..1

CROSSREFS

Cf. A257270

Sequence in context: A210182 A210412 A048937 * A283274 A206061 A274026

Adjacent sequences:  A257266 A257267 A257268 * A257270 A257271 A257272

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 19 2015

STATUS

approved

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Last modified June 4 04:39 EDT 2020. Contains 334815 sequences. (Running on oeis4.)