A240425 Number of nX4 0..3 arrays with no element equal to one 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, modulo 4

38, 684, 11573, 203213, 3577618, 63110993, 1115948342, 19752407566, 349830659344, 6197897583100, 109829351050815, 1946455635054116, 34498648643186681, 611474938386688769, 10838439730681967704

Offset

1,1

Comments

Column 4 of A240427

Links

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

Example

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

Crossrefs

Sequence in context: A020931 A089271 A195912 * A269010 A010954 A035714

Adjacent sequences: A240422 A240423 A240424 * A240426 A240427 A240428

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved