A241251 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or zero 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

7, 10, 34, 120, 545, 2570, 13328, 70264, 390840, 2166393, 12186519, 68347761, 385756287, 2171706653, 12264859070, 69159861508, 390555507284, 2203677274384, 12443050758381, 70227871631917, 396507191404589, 2238145931844904

Offset

1,1

Comments

Column 4 of A241255

Links

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

Example

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

Crossrefs

Sequence in context: A244165 A119169 A095756 * A126076 A341736 A258284

Adjacent sequences: A241248 A241249 A241250 * A241252 A241253 A241254

Keyword

nonn

Author

R. H. Hardin, Apr 18 2014

Status

approved