A254241 - OEIS

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A254241

Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically

1700100, 7570126, 46946080, 277964612, 823990321, 3047978749, 9935634151, 29382711821, 95953540161, 293785336653, 833373370033, 2431974181862, 6965029259487, 19640400014811, 55336083194301, 154645437553091

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A254242

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..43

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A083600 A257432 A257425 * A172792 A272710 A121887

Adjacent sequences: A254238 A254239 A254240 * A254242 A254243 A254244

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2015

STATUS

approved