login
A251299
Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9
1
1950036, 71163896, 3313122288, 203797267488, 15983177343168, 1492135910643272, 155808707894943636, 17437938159273237360, 2036816489163787580492, 244271558736881953551100
OFFSET
1,1
COMMENTS
Column 7 of A251300
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..3..3..0..3....0..2..0..2..2..3..1..0....0..2..0..2..3..2..0..2
..0..3..3..3..0..3..0..0....0..1..0..1..1..0..2..3....3..1..3..1..0..1..0..1
CROSSREFS
Sequence in context: A069339 A350539 A109147 * A220290 A186578 A186579
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved