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A222496
Number of nX4 0..3 arrays with exactly floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order
1
3, 5, 35, 346, 6109, 101272, 1809959, 30640551, 555968545, 9536953884, 171781998471, 2977558169088, 53361664849461, 931771478255831, 16637749408151073, 292170585442978004, 5204023925091257477
OFFSET
1,1
COMMENTS
Column 4 of A222500
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..0..0..0....0..0..0..1....0..1..2..2....0..1..0..2
..0..0..0..0....0..0..0..0....0..0..0..2....1..1..1..3....0..0..0..2
..0..0..0..0....0..0..0..1....0..0..0..0....1..1..1..1....0..0..0..0
..1..2..1..2....1..0..1..2....2..0..0..0....1..1..1..1....0..0..0..0
CROSSREFS
Sequence in context: A077784 A325582 A145640 * A086158 A158878 A337858
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 23 2013
STATUS
approved