OFFSET
1,4
COMMENTS
Table starts
..1.....1.......2........4........7.......12........21.......37.....65.114
..1.....6......27......107......461.....1844......7502....29893.119342
..2....27.....274.....2648....23765...203122...1686374.13787513
..4...107....2648....51924...928133.15638551.256020803
..7...461...23765...928133.32233374
.12..1844..203122.15638551
.21..7502.1686374
.37.29893
.65
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..49
EXAMPLE
Some solutions for n=3 k=4
..0..0..0..0....1..0..1..0....1..0..0..0....0..0..0..0....1..1..1..1
..0..0..1..1....0..1..0..1....0..0..1..1....0..0..0..1....0..0..0..0
..1..1..1..0....0..1..1..0....1..0..0..1....0..0..1..0....1..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 04 2013
STATUS
approved