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A196426 Number of nX4 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than itself 1
11, 809, 27583, 1436945, 67917500, 3308601959, 161187862053, 7798861912989, 378707068543349, 18386677122989718, 892343161380306411, 43311507597470368815, 2102210778739358126501, 102035875956252609950937 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A196430
LINKS
EXAMPLE
Some solutions for n=3
..1..0..1..1....2..0..0..0....2..1..0..0....1..0..3..0....0..0..3..0
..2..2..2..0....0..0..4..0....1..3..4..1....3..1..1..1....1..4..0..0
..0..1..3..1....1..1..2..1....0..0..0..1....0..3..0..1....1..0..0..2
CROSSREFS
Sequence in context: A110776 A058392 A100369 * A371720 A238715 A162448
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 02 2011
STATUS
approved

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Last modified June 25 04:03 EDT 2024. Contains 373697 sequences. (Running on oeis4.)