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A210123
Number of (n+1)X7 0..3 arrays with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order
1
77642, 10466659, 1421103679, 196165653701, 27242258026525, 3796186901665625, 529852245006108509, 74015295806960859539, 10343465244789242086595, 1445773490889640365166331, 202106039468905760770043195
OFFSET
1,1
COMMENTS
Column 6 of A210125
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0..1....0..0..1..0..0..2..0....0..0..0..0..1..0..1
..2..2..0..1..0..1..0....3..0..0..0..3..1..3....0..1..0..1..0..0..0
..3..2..2..3..2..3..2....2..1..0..1..2..0..2....1..0..0..0..1..1..1
..0..1..1..0..1..0..1....2..2..3..2..1..3..1....1..0..2..2..3..1..3
..3..2..1..1..1..0..0....2..0..1..0..3..1..3....3..2..0..0..1..3..3
CROSSREFS
Sequence in context: A249958 A232349 A157732 * A279893 A069044 A250012
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved