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A240794
Number of 3Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4
1
4, 5, 8, 19, 34, 82, 278, 669, 1969, 3553, 9374, 26252, 60465, 172383, 389427, 951837, 2531963, 6160868, 15935881, 39165416, 97133522, 245493084, 614301686, 1554508080, 3857975809, 9676587733, 24254427054, 60670014406, 152847249733
OFFSET
1,1
COMMENTS
Row 3 of A240792
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3..2....3..2..3..2....3..2..3..3....3..2..3..2....3..2..3..3
..3..2..1..1....3..2..1..2....3..2..1..2....3..2..1..1....3..2..1..1
..2..0..0..1....2..2..0..2....2..2..3..1....2..0..0..2....2..2..2..2
CROSSREFS
Sequence in context: A362959 A258935 A275929 * A171938 A325878 A352396
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 12 2014
STATUS
approved