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A253406 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally 1
3920448, 2763096, 5662124, 27085902, 139685535, 954233428, 4643086490, 27322067530, 163912344968, 848291663906, 4872009295964, 30392607749668, 151393708633722, 895214647275986, 5436737824552890, 27492714672723338 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A253407

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A251439 A256621 A213159 * A251071 A184562 A115171

Adjacent sequences:  A253403 A253404 A253405 * A253407 A253408 A253409

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 31 2014

STATUS

approved

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Last modified October 13 18:14 EDT 2019. Contains 327981 sequences. (Running on oeis4.)