OFFSET
1,3
COMMENTS
Table starts
..1....1.....1.....1.....1.....1.....1......1......1......1......1......1
..2....2.....2.....2.....2.....2.....2......2......2......2......2......2
..3....6.....6.....6.....6.....6.....6......6......6......6......6......6
..5...13....20....20....20....20....20.....20.....20.....20.....20.....20
..8...31....61....76....76....76....76.....76.....76.....76.....76.....76
.13...73...185...269...300...300...300....300....300....300....300....300
.21..172...577...979..1189..1252..1252...1252...1252...1252...1252...1252
.34..399..1788..3552..4701..5197..5324...5324...5324...5324...5324...5324
.55..932..5540.13068.18754.21735.22869..23124..23124..23124..23124..23124
.89.2177.17165.47999.75243.91151.98497.101037.101548.101548.101548.101548
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..617
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2)
k=2: a(n) = 2*a(n-1) +2*a(n-3) +a(n-4) -3*a(n-5) -2*a(n-7) +a(n-9)
EXAMPLE
Some solutions for n=7 k=4
..3....0....3....2....4....0....3....0....0....1....4....0....3....0....2....1
..0....3....1....1....1....1....1....5....1....3....0....2....0....2....1....3
..2....1....5....5....0....3....0....3....4....2....2....1....4....4....4....2
..6....4....2....0....3....2....6....4....5....6....1....5....2....1....0....6
..1....5....0....3....6....4....4....1....6....0....5....6....5....3....6....0
..4....6....4....4....2....5....2....2....2....4....6....4....1....6....5....5
..5....2....6....6....5....6....5....6....3....5....3....3....6....5....3....4
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 29 2015
STATUS
approved