A183747 - OEIS

A183747

Number of (n+1) X 9 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4.

45272931, 526362000253, 8126407481779133, 136582348832416596017, 2387191890453669325850511

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OFFSET

1,1

COMMENTS

Column 8 of A183748.

LINKS

EXAMPLE

Some solutions for 3 X 9:

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

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

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

...

...M..M..M..M..P..P..P..P.......M..M..M..M..P..P..P..P...

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2011

STATUS

approved