OFFSET
1,1
COMMENTS
Table starts
.....10.......28........78.........220...........618............1740
.....28......116.......474........1982..........8218...........34288
.....78......474......2804.......17216........104058..........636404
....220.....1982.....17216......157312.......1405454........12770802
....618.....8218....104058.....1405454......18415674.......246926340
...1740....34288....636404....12770802.....246926340......4911447738
...4894...142600...3866110...114913804....3265612528.....96040080726
..13772...594236..23591052..1040818716...43595364706...1900083059348
..38746..2473510.143559096..9388632290..578517868594..37310824370952
.109020.10302766.875140808.84916233072.7707617770032.736337217038262
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..420
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +3*a(n-2) -2*a(n-3)
k=2: a(n) = 3*a(n-1) +8*a(n-2) -13*a(n-3) -a(n-4) +2*a(n-5)
k=3: [order 10]
k=4: [order 19]
k=5: [order 36]
k=6: [order 71]
EXAMPLE
Some solutions for n=4 k=4
..0..1..0..1..1....1..0..0..0..1....1..0..0..0..1....0..0..0..0..0
..0..0..0..0..0....0..1..1..0..0....0..1..0..1..0....1..0..1..0..1
..1..0..1..0..1....1..0..0..1..0....0..1..0..0..0....0..0..1..0..1
..0..1..0..0..0....0..0..1..0..0....1..0..0..1..0....1..0..0..0..1
..1..0..1..1..1....1..1..0..1..0....0..1..1..0..1....0..0..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved