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A187598
Number of (n+2)X4 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum
1
226450, 8074640, 292759792, 10573764644, 381716567508, 13784634186006, 497795278276942, 17976310976633484, 649156690187966610, 23442274798739620648, 846544307284117366816, 30570298979230731956070
OFFSET
1,1
COMMENTS
Column 2 of A187600
LINKS
EXAMPLE
Some solutions for 6X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1
..0..0..0..0....1..0..0..0....0..0..0..0....1..0..0..0....0..0..0..0
..2..2..2..2....0..2..1..1....0..2..1..1....0..2..1..0....1..2..0..2
..1..0..1..0....0..0..2..2....2..2..0..0....2..0..1..2....2..2..2..1
..0..2..0..1....2..1..1..1....1..1..2..2....2..1..0..0....2..1..1..0
CROSSREFS
Sequence in context: A237032 A067141 A234775 * A061134 A179730 A287900
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 11 2011
STATUS
approved