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A230803 Number of nX5 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, and upper left element zero 1
0, 34, 298, 10448, 243746, 6832578, 180981600, 4943014834, 133700619938, 3636674702224, 98739423076418, 2683583739212562, 72911555860683184, 1981321757121171674, 53837913037442724742, 1462968311880623328120 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A230805
LINKS
EXAMPLE
Some solutions for n=4
..0..3..2..1..2....0..3..0..1..2....0..3..1..0..3....0..3..2..1..2
..1..2..3..0..3....1..2..3..2..3....1..2..2..3..2....1..2..3..0..3
..1..0..1..3..2....3..2..0..3..0....3..0..3..2..1....2..1..2..3..0
..2..3..2..0..1....0..1..1..2..1....2..1..0..3..0....3..0..1..2..1
CROSSREFS
Sequence in context: A027006 A156531 A220565 * A209808 A160146 A101092
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 30 2013
STATUS
approved

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Last modified June 22 16:03 EDT 2024. Contains 373590 sequences. (Running on oeis4.)