OFFSET
1,7
COMMENTS
Table starts
..1....1.......1........2........4...........8.......12....18.27
..1....1.......4.......25......125.........633.....2532.10288
..1....4......49.....1770....52352.....1095488.20725780
..2...25....1770...560436.96348384.10716259649
..4..125...52352.96348384
..8..633.1095488
.12.2532
.18
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2) -a(n-3) +a(n-4) +a(n-5) +a(n-6) -a(n-7) -a(n-8)
EXAMPLE
Some solutions for n=3 k=4
..9.10..2..5....6..1..9.10....0..7..4..3....6..7..9..3....0..1.11.10
..4..3..8..7....4..5..0..7...10..5..6..9...10.11..0..1....4..5..8..7
..6..0..1.11....8..2..3.11...11..2..1..8....8..2..4..5....6..9..3..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 18 2015
STATUS
approved