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A210265
Number of (n+1)X7 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
406580, 292930403, 202860601666, 140618780386783, 97427021073113618, 67504950532170896962, 46772256594635018663098, 32407200627974582453716845, 22454047914872390935721775848, 15557785658285684261082467862656
OFFSET
1,1
COMMENTS
Column 6 of A210267
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0..1....0..0..0..1..0..0..0....0..0..0..0..0..0..0
..2..1..2..1..3..1..3....1..2..1..2..1..3..2....1..2..3..1..2..1..2
..3..1..3..3..0..1..0....0..0..2..3..1..0..2....0..0..2..2..3..2..3
..0..1..0..1..1..2..0....1..2..1..2..3..3..2....1..3..3..0..3..0..2
..3..0..3..3..0..2..1....1..0..0..0..0..1..1....3..2..1..1..3..1..1
CROSSREFS
Sequence in context: A234375 A237919 A363160 * A043609 A220988 A357909
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 19 2012
STATUS
approved