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A208392
T(n,k)=Number of nXk 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors
13
1, 2, 2, 5, 14, 5, 14, 117, 122, 14, 41, 1017, 3042, 1094, 41, 122, 8838, 76806, 79092, 9842, 122, 365, 76806, 1937736, 5800644, 2056392, 88574, 365, 1094, 667476, 48890520, 424785708, 438083928, 53466192, 797162, 1094, 3281, 5800644
OFFSET
1,2
COMMENTS
Table starts
....1.......2...........5..............14.................41
....2......14.........117............1017...............8838
....5.....122........3042...........76806............1937736
...14....1094.......79092.........5800644..........424785708
...41....9842.....2056392.......438083928........93120350760
..122...88574....53466192.....33085555344.....20413586117376
..365..797162..1390120992...2498731184736...4475009970818208
.1094.7174454.36143145792.188712490047552.980999326809336384
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..1....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..1
..2..0..2....0..1..2....1..1..1....0..1..2....1..2..1....2..0..2....2..0..2
..1..0..2....0..0..0....1..0..0....2..0..0....0..2..2....2..2..0....0..2..2
..1..2..1....1..2..0....1..2..2....1..0..1....0..0..2....0..2..1....2..0..2
CROSSREFS
Column 1 is A007051(n-1)
Column 2 is A199560(n-1)
Row 1 is A007051(n-1)
Sequence in context: A282056 A199655 A241114 * A282275 A208201 A185966
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 25 2012
STATUS
approved