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A230395 Number of nX4 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero 1
0, 0, 82, 3200, 88580, 2467778, 68210356, 1854786186, 50178350064, 1357757826784, 36719604078100, 992781443686032, 26839717495154754, 725595372524892970, 19615802782498931020, 530292387794934229916, 14335868303423900878180 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 4 of A230398
LINKS
EXAMPLE
Some solutions for n=5
..0..1..2..3....0..1..2..3....0..1..2..1....0..1..2..1....0..1..2..3
..2..0..0..4....1..2..3..4....0..4..3..0....4..4..3..0....4..0..4..4
..3..4..1..0....0..4..3..0....1..1..2..1....1..0..2..1....3..2..1..0
..2..3..2..1....0..1..2..1....2..0..1..1....2..0..1..3....1..4..0..4
..1..3..4..0....4..0..4..3....3..4..3..2....3..4..0..4....2..3..2..1
CROSSREFS
Sequence in context: A234253 A031606 A232904 * A017798 A035736 A017745
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 18 2013
STATUS
approved

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Last modified June 15 03:12 EDT 2024. Contains 373402 sequences. (Running on oeis4.)