OFFSET
1,5
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..419
EXAMPLE
Table starts
.1....1......1........1..........1.............1...............1
.1....4.....14.......40........116...........344............1016
.1...14.....93......494.......2801.........16062...........91161
.1...40....494.....4892......51068........538672.........5654616
.1..116...2801....51068.....993219......19675348.......387217701
.1..344..16062...538672...19675348.....734614472.....27173404568
.1.1016..91161..5654616..387217701...27173404568...1886797510045
.1.2992.517646.59369072.7615580812.1004314801728.130876616267032
Some solutions for n=5 k=3
..1..1..1....1..1..0....1..1..0....0..0..0....0..1..1....0..1..1....0..0..1
..1..0..1....0..1..1....0..1..0....0..1..1....1..1..1....1..1..1....1..0..1
..1..1..0....0..0..0....1..1..0....1..1..1....0..1..0....1..1..1....1..1..1
..1..1..1....0..0..0....1..1..1....1..1..0....1..1..1....1..1..1....1..1..1
..1..1..0....0..0..0....0..0..1....0..0..1....0..0..0....0..0..1....0..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 25 2011
STATUS
approved