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A202634
Number of nX4 0..3 arrays with adjacent row and column sums unequal
0
108, 32676, 8196796, 1960824272, 459796683544, 106682611433736, 24584277764975388, 5638735096577721148, 1289001492923309570328, 293932444114275034112864
OFFSET
1,1
COMMENTS
Column 4 of A202636
EXAMPLE
Some solutions for n=2
..1..0..2..3....0..3..1..1....2..1..2..2....0..1..1..1....2..1..2..3
..2..0..0..2....2..2..0..2....0..2..0..2....2..2..0..3....3..2..0..1
CROSSREFS
Sequence in context: A230613 A377246 A216592 * A270255 A269269 A230474
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 21 2011
STATUS
approved