

A239996


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


1



4, 25, 190, 1372, 10405, 83029, 685898, 5825700, 50417154, 441675344, 3899065908, 34583504110, 307633283500, 2741312316323, 24453522555996, 218272506712305, 1949041652201113, 17407703510071602, 155496451538874916
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OFFSET

1,1


COMMENTS

Column 3 of A240000


LINKS

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


EXAMPLE

Some solutions for n=5
..0..0..3....3..3..0....0..3..3....0..3..3....0..0..3....0..3..3....3..3..0
..0..3..3....0..3..1....0..0..3....0..0..3....3..3..0....0..3..3....2..2..3
..0..2..1....0..2..0....3..2..3....0..3..3....3..3..2....0..2..1....0..2..0
..0..2..0....0..0..0....2..1..1....3..3..1....2..2..2....3..3..2....0..2..2
..3..3..2....2..0..2....2..1..2....3..1..3....3..1..3....0..2..1....2..2..2


CROSSREFS

Sequence in context: A221382 A215791 A175913 * A064063 A171991 A141371
Adjacent sequences: A239993 A239994 A239995 * A239997 A239998 A239999


KEYWORD

nonn


AUTHOR

R. H. Hardin, Mar 30 2014


STATUS

approved



