A183659 Number of (n+1)X7 0..5 arrays with every 2x2 subblock summing to 10

473586, 987762, 2458590, 6990906, 21960366, 74549082, 269462670

Offset

1,1

Comments

Column 6 of A183662

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for 3X7
..3..0..4..4..5..3..2....3..0..4..2..5..0..4....0..0..1..4..3..3..4
..2..5..1..1..0..2..3....3..4..2..2..1..4..2....5..5..4..1..2..2..1
..3..0..4..4..5..3..2....2..1..3..3..4..1..3....0..0..1..4..3..3..4

Crossrefs

Sequence in context: A190639 A228271 A219996 * A213994 A201226 A244628

Adjacent sequences: A183656 A183657 A183658 * A183660 A183661 A183662

Keyword

nonn

Author

R. H. Hardin Jan 06 2011

Status

approved