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A210264
Number of (n+1)X6 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
1
42520, 13233079, 3885183814, 1137801615818, 332946143914838, 97427021073113618, 28508853879455964312, 8342193957083521350330, 2441072766493238740821372, 714300863819734626424099882
OFFSET
1,1
COMMENTS
Column 5 of A210267
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..0..2..1....0..0..0..0..0..0....0..1..0..2..0..1....0..0..0..0..0..0
..1..2..0..3..2..3....1..2..3..1..2..3....0..3..3..2..3..3....1..2..1..2..1..2
..3..1..0..2..1..3....3..1..1..0..0..2....2..2..1..2..0..1....1..0..2..3..1..0
..2..1..2..1..3..0....0..3..0..2..3..3....1..3..1..3..2..0....3..1..0..2..1..2
..1..3..1..3..0..1....2..3..1..0..2..0....3..0..3..2..1..0....0..1..2..1..3..3
CROSSREFS
Sequence in context: A237312 A217164 A062694 * A251245 A187959 A253521
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 19 2012
STATUS
approved