A187642 Number of (n+2)X5 0..2 arrays with each 3X3 subblock having sum 9

101419, 363533, 1342083, 5273797, 24351579, 115259453, 564564211, 3003056861, 16240656315, 89645104453, 519095822283, 3041331131645, 18065636068579, 110621336092493, 683205533634603, 4260820568077237, 27116433602180379

Offset

1,1

Comments

Column 3 of A187645

Links

R. H. Hardin, Table of n, a(n) for n = 1..188

Example

Some solutions for 4X5
..0..1..2..1..1....0..1..1..1..1....0..0..2..0..0....0..2..1..1..1
..1..1..2..2..1....1..1..0..1..1....1..1..0..2..2....1..2..0..1..2
..2..0..0..0..0....1..2..2..0..2....1..2..2..0..1....2..1..0..1..2
..1..0..2..2..0....0..1..1..1..1....0..2..0..0..2....1..1..1..2..0

Crossrefs

Sequence in context: A251959 A250631 A229684 * A023077 A077760 A218170

Adjacent sequences: A187639 A187640 A187641 * A187643 A187644 A187645

Keyword

nonn

Author

R. H. Hardin Mar 12 2011

Status

approved