A240189 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 three plus the sum of the elements diagonally to its northwest, modulo 4

1, 14, 129, 771, 7170, 44594, 333607, 2715035, 17332017, 134735700, 1005601984, 6796746485, 52922791645, 379298005594, 2679740305873, 20445193269447, 144861185356798, 1052585343798258, 7856125918090405, 55861298280154250

Offset

1,2

Comments

Column 4 of A240192

Links

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

Example

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

Crossrefs

Sequence in context: A301379 A222571 A038841 * A021354 A208427 A006565

Adjacent sequences: A240186 A240187 A240188 * A240190 A240191 A240192

Keyword

nonn

Author

R. H. Hardin, Apr 02 2014

Status

approved