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A277762 Number of nX3 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2. 1
0, 4, 17, 330, 3666, 46289, 560809, 6883464, 84161576, 1030163755, 12605295745, 154256946272, 1887655962034, 23099627259711, 282674025688925, 3459132503499606, 42330011144976582, 517999809756567289 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A277767.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 11*a(n-1) +15*a(n-2) -6*a(n-3) +164*a(n-4) -947*a(n-5) +1147*a(n-6) +106*a(n-7) -215*a(n-8) -374*a(n-9) -134*a(n-10) +168*a(n-11)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A277767.

Sequence in context: A302145 A015489 A153061 * A337477 A041701 A154131

Adjacent sequences:  A277759 A277760 A277761 * A277763 A277764 A277765

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 29 2016

STATUS

approved

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Last modified September 24 06:24 EDT 2020. Contains 337317 sequences. (Running on oeis4.)