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A265242 Number of 3Xn arrays containing n copies of 0..3-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0. 1
1, 10, 92, 888, 8880, 91180, 955320, 10168092, 109595168, 1193414004, 13106207640, 144965453160, 1613228920704, 18047090084256, 202816635014976, 2288462757997500, 25913609592575040, 294366270662992612 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 3 of A265241.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..109

EXAMPLE

Some solutions for n=4

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

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

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

CROSSREFS

Cf. A265241.

Sequence in context: A120996 A190990 A287829 * A262173 A103944 A190989

Adjacent sequences:  A265239 A265240 A265241 * A265243 A265244 A265245

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 06 2015

STATUS

approved

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Last modified January 16 15:53 EST 2021. Contains 340206 sequences. (Running on oeis4.)