A234153 Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1

46, 2210, 411712, 305867942, 906740091154, 10766110422202828, 513096321262694789718, 98329465854339796818641798, 75883578239965077307319666003040

Offset

1,1

Comments

Diagonal of A234161

Links

R. H. Hardin, Table of n, a(n) for n = 1..11

Example

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

Crossrefs

Sequence in context: A009990 A042013 A333718 * A123830 A201234 A025763

Adjacent sequences: A234150 A234151 A234152 * A234154 A234155 A234156

Keyword

nonn

Author

R. H. Hardin, Dec 20 2013

Status

approved