A233627 Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6

100, 10544, 4350820, 8271515976, 70397790661236, 2773481533459095728, 503834532970292342872224, 424823535145734004788702590284

Offset

1,1

Comments

Diagonal of A233635

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A267523 A027576 A099374 * A163663 A272681 A267674

Adjacent sequences: A233624 A233625 A233626 * A233628 A233629 A233630

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved