A239401 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it, modulo 4

16, 478, 13977, 394509, 11334364, 326882784, 9402398952, 270516990628, 7789048968124, 224284362847360, 6457977012007180, 185957590016422087, 5354807669541831222, 154196812648221842975, 4440254588265618959278

Offset

1,1

Comments

Column 4 of A239405

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A299743 A299665 A300256 * A254633 A283327 A185367

Adjacent sequences: A239398 A239399 A239400 * A239402 A239403 A239404

Keyword

nonn

Author

R. H. Hardin, Mar 17 2014

Status

approved