A239400 Number of nX3 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

8, 105, 1337, 16449, 205969, 2590704, 32507376, 408000104, 5124790809, 64375497505, 808627026775, 10157673828398, 127600254367522, 1602912146570029, 20135780318743491, 252946235316308314

Offset

1,1

Comments

Column 3 of A239405

Links

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

R. H. Hardin, Empirical recurrence of order 64

Formula

Empirical recurrence of order 64 (see link above)

Example

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

Crossrefs

Sequence in context: A302961 A302804 A303465 * A001922 A264014 A222839

Adjacent sequences: A239397 A239398 A239399 * A239401 A239402 A239403

Keyword

nonn

Author

R. H. Hardin, Mar 17 2014

Status

approved