OFFSET
1,4
COMMENTS
Table starts
.1.....1.......2.........4..........7..........12.........21........37
.1.....4......16........52........200.........792.......3080.....12164
.1....12......92.......673.......5912.......48298.....396846...3240527
.1....37.....556......9107.....172904.....2890017...49684593.821323042
.1...114....3332....123958....4983598...172905144.6138441061
.1...351...19996...1686304..143511784.10344276279
.1..1081..119972..22931365.4129628435
.1..3329..719836.311813067
.1.10252.4319012
.1.31572
.1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..70
EXAMPLE
Some solutions for n=3, k=4
..0..0..1..0....0..0..0..0....0..1..0..0....0..0..0..1....0..0..0..1
..0..0..1..0....0..1..0..0....1..0..1..0....0..0..0..0....1..0..0..0
..0..1..0..0....1..0..1..0....1..1..1..0....1..1..0..0....1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 09 2013
STATUS
approved