OFFSET
1,12
COMMENTS
Table starts
.0..0..0..0...0....0......0.......0........0..........0...........0
.0..1..1..2...3....5......8......13.......21.........34..........55
.0..1..1..2...3....5......8......13.......21.........34..........55
.0..2..2..4...6...11.....18......31.......53.........91.........156
.0..3..3..6..10...22.....47.....143......418.......1449........4821
.0..5..5.11..22..102....390....1990.....8875......42338......200422
.0..8..8.18..47..390...3101...21928...156972....1153968.....8497555
.0.13.13.31.143.1990..21928..300849..3354122...43052414...516822488
.0.21.21.53.418.8875.156972.3354122.54865647.1090267927.19403449274
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = a(n-1) +a(n-2)
k=3: a(n) = a(n-1) +a(n-2)
k=4: a(n) = 2*a(n-1) +a(n-2) -a(n-3) -2*a(n-4) -2*a(n-5) +a(n-6) +a(n-7)
k=5: [order 69]
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..0..1..1
..0..0..0..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..0..1..1
..0..0..0..0. .0..0..0..0. .0..0..1..1. .1..1..1..1. .1..1..0..0
..1..1..1..1. .0..0..0..0. .1..1..0..0. .1..1..1..1. .1..1..0..0
..1..1..1..1. .0..0..0..0. .1..1..0..0. .1..1..1..1. .1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 30 2018
STATUS
approved