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A185503 Number of (n+1)X7 0..2 arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum 0
13347, 1418183, 64545575, 3784477987, 201869155765 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A185504

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A254851 A162423 A176465 * A333014 A205196 A235297

Adjacent sequences:  A185500 A185501 A185502 * A185504 A185505 A185506

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 29 2011

STATUS

approved

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Last modified April 15 03:00 EDT 2021. Contains 342974 sequences. (Running on oeis4.)