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A250981 Number of (n+1)X(7+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements 1
17673153, 55847243498, 174911850250602, 548891857207523016, 1722239421934657361988, 5403961231550447362641701, 16956293118548007574241097692, 53204663067980474498805483728765 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A250982

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A183269 A032749 A235848 * A344631 A159192 A154875

Adjacent sequences:  A250978 A250979 A250980 * A250982 A250983 A250984

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2014

STATUS

approved

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Last modified December 6 22:42 EST 2021. Contains 349567 sequences. (Running on oeis4.)