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A251441 Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements 1
549607078, 6076163446285, 59895416958296448, 616672357656950586311, 6240722966413231119519432, 63577339993396485656457199590, 646008743174147370182177022951419, 6570708441458867604854496574684740934 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A251442

LINKS

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

EXAMPLE

Some solutions for n=1

..0..0..0..2..0..3..0..0....0..0..0..2..0..0..0..3....0..0..0..0..2..2..1..3

..0..0..0..2..1..1..1..2....0..0..0..2..2..0..1..3....0..0..0..0..2..0..1..2

CROSSREFS

Sequence in context: A172619 A090468 A214480 * A234199 A071135 A335561

Adjacent sequences:  A251438 A251439 A251440 * A251442 A251443 A251444

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved

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Last modified December 8 17:01 EST 2021. Contains 349596 sequences. (Running on oeis4.)