OFFSET
1,2
COMMENTS
Table starts
....1.........2............4..............11...............30................82
....2........11...........59.............338.............1917.............10893
....5........82..........858...........10205...........119440...........1401470
...14.......612........12484..........310365..........7533245.........183331502
...41......4568.......181640.........9439606........474736149.......23952262535
..122.....34096......2642832.......287101721......29920114246.....3130289979912
..365....254496.....38452768......8732086113....1885698283255...409089889172506
.1094...1899584....559481408....265582964074..118845116023725.53463025958093933
.3281..14178688...8140361856...8077601392565.7490149091439288
.9842.105831168.118440917248.245677069239189
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = 4*a(n-1) -3*a(n-2)
k=2: a(n) = 8*a(n-1) -4*a(n-2) for n>3
k=3: a(n) = 14*a(n-1) +8*a(n-2)
k=4: a(n) = 29*a(n-1) +44*a(n-2) -27*a(n-3) -81*a(n-4) for n>5
k=5: [order 8] for n>9
k=6: [order 20] for n>22
Empirical for row n:
n=1: a(n) = 2*a(n-1) +2*a(n-2) for n>4
n=2: a(n) = 5*a(n-1) +6*a(n-2) -11*a(n-3) -7*a(n-4) +4*a(n-5) for n>6
n=3: [order 18] for n>20
n=4: [order 73] for n>78
EXAMPLE
Some solutions for n=3 k=4
..0..1..0..0. .0..1..0..2. .0..1..0..1. .0..0..1..0. .0..1..1..0
..0..1..2..1. .2..0..2..1. .0..2..1..0. .2..2..1..1. .2..0..2..0
..1..2..0..0. .2..1..0..2. .2..0..2..0. .1..0..2..2. .1..0..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 07 2017
STATUS
approved