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A253405 Number of (n+1)X(6+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally 1
646240, 638602, 1489310, 7437150, 30756372, 196170260, 954233428, 4184013494, 23948788480, 123736222078, 533052293254, 3116669936220, 15687449192482, 68617590941736, 395367044525650, 2007468414696700, 8759855652090420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A253407

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A154873 A061406 A231323 * A034628 A014496 A251398

Adjacent sequences:  A253402 A253403 A253404 * A253406 A253407 A253408

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 31 2014

STATUS

approved

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Last modified June 25 22:13 EDT 2022. Contains 354868 sequences. (Running on oeis4.)