A241352 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4

6, 17, 51, 128, 248, 624, 1323, 2715, 5798, 11469, 22610, 44855, 88994, 180577, 367607, 733516, 1503885, 3019433, 6043861, 12320601, 24650945, 49784403, 100845525, 202178447, 409323604, 825183533, 1660318484, 3359379163

Offset

1,1

Comments

Column 4 of A241356

Links

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

Example

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

Crossrefs

Sequence in context: A083334 A199113 A297297 * A239796 A231223 A231437

Adjacent sequences: A241349 A241350 A241351 * A241353 A241354 A241355

Keyword

nonn

Author

R. H. Hardin, Apr 20 2014

Status

approved