A239335 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of elements above it, modulo 4

12, 172, 2187, 27341, 346028, 4360887, 54774178, 688266175, 8649330696, 108663198449, 1365050486095, 17148274201252, 215420739233431, 2706135761424448, 33994663679676011, 427043158643798758

Offset

1,1

Comments

Column 3 of A239340

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=4
..0..0..0....2..0..0....0..0..2....2..0..0....0..2..2....0..0..2....0..0..2
..0..2..0....0..2..0....2..2..0....0..0..0....0..0..3....2..2..2....2..2..0
..0..2..2....2..2..0....0..0..0....0..0..2....0..0..3....0..3..1....3..2..3
..2..2..3....2..0..0....2..0..2....0..0..3....0..2..0....0..2..2....3..1..2

Crossrefs

Sequence in context: A099270 A187361 A366235 * A120662 A230815 A099930

Adjacent sequences: A239332 A239333 A239334 * A239336 A239337 A239338

Keyword

nonn

Author

R. H. Hardin, Mar 16 2014

Status

approved