A183966 Number of (n+1)X5 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

15759, 459821, 14219749, 492135291, 17133244697, 615149254565, 22112885527475, 802997664018905, 29161626546111469, 1062496257469946027, 38709026775013231021, 1411769537432056237501, 51486256059203227188623

Offset

1,1

Comments

Column 4 of A183971

Links

R. H. Hardin, Table of n, a(n) for n = 1..100

Example

Some solutions for 3X5
..0..1..0..2..1....0..1..0..2..1....0..2..0..2..0....0..1..1..1..2
..1..2..2..1..2....2..2..1..1..1....1..1..0..1..0....2..1..2..0..1
..1..1..1..2..2....0..0..2..1..1....0..2..1..1..0....2..0..2..1..2
...
...4..5..5..6.......5..4..4..5.......4..3..3..3.......4..5..4..4...
...5..6..6..7.......4..5..5..4.......4..4..3..2.......5..5..5..4...

Crossrefs

Sequence in context: A205897 A350884 A190834 * A187031 A233642 A246042

Adjacent sequences: A183963 A183964 A183965 * A183967 A183968 A183969

Keyword

nonn

Author

R. H. Hardin Jan 08 2011

Status

approved