A187599 Number of (n+2)X5 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum

4034228, 292759792, 21834817212, 1616392693134, 119535001467744, 8847026088947870, 654776681640016806, 48458293039460233184, 3586264824879128318610, 265411874452236154181166

Offset

1,1

Comments

Column 3 of A187600

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

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

Crossrefs

Sequence in context: A109207 A104930 A251614 * A246470 A231614 A191346

Adjacent sequences: A187596 A187597 A187598 * A187600 A187601 A187602

Keyword

nonn

Author

R. H. Hardin Mar 11 2011

Status

approved