OFFSET
1,1
COMMENTS
Table starts
....3........9.........25............67..............181.................491
....9.......71........427..........2393............13691...............80043
...25......427.......4671.........49019...........539703.............6045209
...67.....2393......49019........977939.........20577215...........439030021
..181....13691.....539703......20577215........833949273.........34404755041
..491....80043....6045209.....439030021......34404755041.......2753775365011
.1331...469273...67402167....9326184515....1412775737517.....219013376708219
.3607..2739433..748987305..197633166633...57827217804729...17350805966693235
.9775.15958607.8323819069.4188392176965.2366890987279579.1374728293480549343
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..112
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +a(n-2) +2*a(n-3) +a(n-4) +a(n-5)
k=2: [order 16]
k=3: [order 42]
EXAMPLE
Some solutions for n=3 k=4
..0.-1..1.-1....0..0..0..0....1.-1.-1..1....0..1..1.-1....1..1..0..0
..0..0..0.-1....0..1.-1..0....0..1..1.-1....0..0..0..0...-1..0..0..0
..0.-1..1..1...-1.-1..1..1....0.-1..1..0....0.-1..1..0...-1..1..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jun 15 2013
STATUS
approved