login
A208322
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 left-upward diagonal neighbors
8
1, 2, 2, 5, 13, 5, 14, 113, 113, 14, 41, 982, 2852, 982, 41, 122, 8534, 71956, 71956, 8534, 122, 365, 74164, 1815496, 5269968, 1815496, 74164, 365, 1094, 644516, 45806048, 385979024, 385979024, 45806048, 644516, 1094, 3281, 5601112, 1155714080
OFFSET
1,2
COMMENTS
Table starts
....1.......2...........5..............14.................41
....2......13.........113.............982...............8534
....5.....113........2852...........71956............1815496
...14.....982.......71956.........5269968..........385979024
...41....8534.....1815496.......385979024........82063614224
..122...74164....45806048.....28269518640.....17447625342768
..365..644516..1155714080...2070490270512...3709557427849168
.1094.5601112.29159359552.151644956050096.788692779445041968
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..1..2....0..0..0....0..0..1....0..1..0....0..0..1....0..0..0....0..1..2
..1..2..0....0..1..1....0..1..2....2..1..2....1..1..1....0..1..2....1..1..1
..0..1..0....1..2..0....1..1..2....2..1..1....1..0..1....2..0..1....0..1..2
..2..0..1....1..2..1....0..0..1....0..1..2....2..1..2....0..0..0....2..1..2
CROSSREFS
Column 1 is A007051(n-1)
Sequence in context: A208960 A209054 A209218 * A208175 A375446 A078413
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 25 2012
STATUS
approved