A251506 Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9

1988695378, 66406260528122, 2213399667918018212, 73817882968740867259470, 2461849509898181667047178526, 82103804631580381524974704047000, 2738199348379960068519012031321385958

Offset

1,1

Comments

Column 7 of A251507

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=1
..0..0..0..0..2..1..1..1....0..0..0..0..2..0..3..3....0..0..0..0..0..0..1..2
..2..3..0..3..2..3..1..2....0..3..0..3..1..1..3..0....1..3..0..3..2..1..1..1

Crossrefs

Sequence in context: A017483 A017615 A232129 * A259349 A204416 A335839

Adjacent sequences: A251503 A251504 A251505 * A251507 A251508 A251509

Keyword

nonn

Author

R. H. Hardin, Dec 03 2014

Status

approved