A196426 Number of nX4 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than itself

11, 809, 27583, 1436945, 67917500, 3308601959, 161187862053, 7798861912989, 378707068543349, 18386677122989718, 892343161380306411, 43311507597470368815, 2102210778739358126501, 102035875956252609950937

Offset

1,1

Comments

Column 4 of A196430

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for n=3
..1..0..1..1....2..0..0..0....2..1..0..0....1..0..3..0....0..0..3..0
..2..2..2..0....0..0..4..0....1..3..4..1....3..1..1..1....1..4..0..0
..0..1..3..1....1..1..2..1....0..0..0..1....0..3..0..1....1..0..0..2

Crossrefs

Sequence in context: A110776 A058392 A100369 * A238715 A162448 A024150

Adjacent sequences: A196423 A196424 A196425 * A196427 A196428 A196429

Keyword

nonn

Author

R. H. Hardin Oct 02 2011

Status

approved