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A208174
Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors
1
715, 7594479, 84091222866, 931104734002155, 10309684155118737894, 114154269785454920027391, 1263976383376771173195964686, 13995414281804368959953485044237, 154964620775524737157861783733965485
OFFSET
1,1
COMMENTS
Column 7 of A208175
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1..2..0..1..0....0..1..0..0..1..0..0....0..0..0..0..0..0..0
..0..0..0..3..0..1..1....2..1..1..0..0..3..1....0..1..1..0..1..0..1
..2..0..2..2..1..0..3....3..0..1..0..1..3..2....1..0..0..2..1..2..3
..2..2..0..2..3..3..0....3..1..3..2..2..1..1....3..0..3..2..2..0..1
CROSSREFS
Sequence in context: A208863 A208871 A208878 * A200800 A208200 A208407
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 24 2012
STATUS
approved