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A265658
Number of 4Xn arrays containing n copies of 0..4-1 with no equal diagonal or antidiagonal neighbors and new values introduced sequentially from 0.
1
1, 43, 1129, 39913, 1465545, 56069313, 2233380101, 90910542367, 3781693498707, 159766749887717, 6840968180271233, 296179445221357883, 12943965113650046445, 570298650928292714341, 25303264564126389894725
OFFSET
1,2
COMMENTS
Row 4 of A265656.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1....0..0..1..2....0..1..2..0....0..0..1..2....0..1..2..3
..2..3..2..0....1..2..1..0....2..1..2..0....3..3..1..3....0..3..0..1
..1..3..2..3....3..2..3..3....3..1..2..3....0..2..2..2....2..2..2..1
..0..3..2..1....3..2..0..1....3..1..0..3....1..1..0..3....1..0..3..3
CROSSREFS
Cf. A265656.
Sequence in context: A010995 A253915 A288031 * A214100 A229432 A122575
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 12 2015
STATUS
approved