A234176 Number of (n+1)X(n+1) 0..5 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1

76, 3908, 771710, 604124712, 1881935211706, 23438907703606286, 1170390542119945204322, 234794309605110016132647780, 189535458303917308549367862970296

Offset

1,1

Comments

Diagonal of A234184

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=2
..2..2..1....4..5..4....0..0..1....2..2..3....4..4..3....1..2..1....3..3..3
..3..2..2....4..4..4....1..0..0....1..2..2....4..3..4....2..2..2....4..3..3
..2..2..2....4..5..5....0..0..1....2..1..2....4..4..3....2..1..2....4..4..4

Crossrefs

Sequence in context: A017739 A278685 A198530 * A116264 A324434 A004299

Adjacent sequences: A234173 A234174 A234175 * A234177 A234178 A234179

Keyword

nonn

Author

R. H. Hardin, Dec 20 2013

Status

approved