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A240700 Number of n X n 0..3 arrays with no element equal to a different number of vertical neighbors than horizontal neighbors, with new values 0..3 introduced in row major order 0
1, 5, 461, 332412, 1382959986, 33101173163229, 4557765530585124406, 3610256703332068651606556 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A240706

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

..0..1..2....0..1..2....0..1..2....0..1..2....0..1..1....0..1..2....0..1..0

..2..2..1....1..2..3....2..3..1....3..2..1....2..1..1....2..3..0....2..0..3

..2..2..0....3..0..2....3..1..3....1..3..2....0..3..2....0..1..2....1..2..0

CROSSREFS

Sequence in context: A221626 A332145 A144509 * A060855 A212043 A182403

Adjacent sequences:  A240697 A240698 A240699 * A240701 A240702 A240703

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 10 2014

STATUS

approved

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Last modified July 23 21:46 EDT 2021. Contains 346265 sequences. (Running on oeis4.)