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A185613 Number of (n+1)X5 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum 0
3645, 313105, 16830089, 1099131565, 68751907871, 4433660417573 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A185614

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for 3X5

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

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

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

CROSSREFS

Sequence in context: A253464 A015294 A186870 * A232837 A252086 A212852

Adjacent sequences:  A185610 A185611 A185612 * A185614 A185615 A185616

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 31 2011

STATUS

approved

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Last modified August 10 16:24 EDT 2022. Contains 356039 sequences. (Running on oeis4.)