OFFSET
1,1
COMMENTS
Table starts
...152...272....560.....976....1904.....3472......6544.....12048......22704
...272...424....960....1536....3136.....5664.....10496.....20000......36160
...560...960...2992....5280...13800....27072.....63496....130464.....297288
...976..1536...5280....8904...23936....53128....112864....286888.....563680
..1904..3136..13800...23936...76840...175328....438504...1151296....2656232
..3472..5664..27072...53128..175328...520888...1255456...4289736....9455136
..6544.10496..63496..112864..438504..1255456...3424264..12086016...30463848
.12048.20000.130464..286888.1151296..4289736..12086016..51091912..132958016
.22704.36160.297288..563680.2656232..9455136..30463848.132958016..419412744
.41680.68672.612480.1423176.7032608.31254904.105411360.528171592.1709806624
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..1057
FORMULA
Empirical for column k:
k=1: a(n) = 4*a(n-2) -3*a(n-4) +4*a(n-6)
k=2: a(n) = 5*a(n-2) -8*a(n-4) +8*a(n-6) +4*a(n-8)
k=3: a(n) = 7*a(n-2) -15*a(n-4) +17*a(n-6) +16*a(n-8) for n>11
k=4: [order 14] for n>16
k=5: [order 16] for n>19
k=6: [order 22] for n>26
k=7: [order 30] for n>33
EXAMPLE
Some solutions for n=4 k=4
..1..0..1..0..1..1....1..1..1..1..0..1....0..0..0..0..1..0....1..0..0..0..1..1
..0..0..0..0..0..0....1..0..1..1..1..0....0..1..0..1..0..0....0..1..0..1..0..0
..0..0..1..0..1..0....0..1..0..1..0..1....0..0..0..0..0..0....1..0..0..0..0..0
..0..1..0..0..0..0....1..1..1..1..1..0....0..1..0..1..0..1....0..1..0..1..0..1
..0..0..1..0..1..0....0..1..0..1..0..1....1..0..0..0..0..0....0..0..0..0..0..0
..1..1..0..1..0..0....1..0..1..1..0..0....1..0..0..1..0..1....0..1..0..1..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 30 2014
STATUS
approved