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A210259 Number of (n+1)X(n+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having three distinct values, and new values 0..3 introduced in row major order 0
0, 1039, 1409910, 9204003223, 332946143914838, 67504950532170896962, 76734939290291126791703390, 489053432070220933819410319061667 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A210267

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A288413 A020395 A069456 * A233854 A168412 A183742

Adjacent sequences:  A210256 A210257 A210258 * A210260 A210261 A210262

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 19 2012

STATUS

approved

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Last modified May 16 17:22 EDT 2021. Contains 343949 sequences. (Running on oeis4.)