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A277769 Number of 4Xn 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, 14, 330, 9741, 275018, 7824415, 221983169, 6298326387, 178728649865, 5071423132367, 143902812077769, 4083281399156407, 115864087742823865, 3287671351656190808, 93288470977649320614, 2647082885606708742103 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A277767.

LINKS

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

R. H. Hardin, Empirical recurrence of order 98

FORMULA

Empirical recurrence of order 98 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A277767.

Sequence in context: A275262 A241373 A090598 * A060075 A222984 A278194

Adjacent sequences:  A277766 A277767 A277768 * A277770 A277771 A277772

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 29 2016

STATUS

approved

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Last modified May 16 22:18 EDT 2022. Contains 353724 sequences. (Running on oeis4.)