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A210078 Number of (n+1)X(n+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order 0
1, 2384, 7853122, 198214365329, 41562565414532492, 72599208478326114502304, 1056388250136945583891331683046, 128049790734830830744725613641587707522 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A210086
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0..0....0..1..0..2..0....0..1..0..0..1....0..1..0..0..0
..2..3..0..0..0....3..3..0..1..3....1..2..1..2..2....0..2..1..3..2
..2..0..2..3..1....2..1..1..2..1....3..0..3..3..0....1..1..3..0..3
..0..1..0..3..2....1..0..2..0..3....0..1..3..3..2....2..3..0..1..0
..0..2..3..2..0....0..2..3..1..1....1..2..1..0..1....2..1..3..2..0
CROSSREFS
Sequence in context: A218849 A254562 A186867 * A172653 A172677 A172772
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved

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Last modified March 3 15:08 EST 2024. Contains 370512 sequences. (Running on oeis4.)