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A183968 Number of (n+1)X7 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one 0
586791, 53575889, 5344196941, 615149254565, 71600778588343 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A183971

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

...

...2..2..2..2..2..2.......1..2..2..2..3..2.......0..1..1..2..3..2...

...2..2..2..2..3..3.......1..2..2..2..3..3.......1..0..1..2..2..2...

CROSSREFS

Sequence in context: A254551 A254558 A254481 * A104962 A100386 A205214

Adjacent sequences:  A183965 A183966 A183967 * A183969 A183970 A183971

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 08 2011

STATUS

approved

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Last modified October 18 17:19 EDT 2021. Contains 348068 sequences. (Running on oeis4.)