OFFSET
1,5
COMMENTS
Table starts
..0.....1.......1.........2...........3.............5...............8
..1.....4......17........61.........216...........793............2907
..1....17.....109.......588........3276.........18500..........104034
..2....61.....588......4771.......41762........367315.........3215618
..3...216....3276.....41762......575754.......7967553.......109775311
..5...793...18500....367315.....7967553.....173576070......3761355239
..8..2907..104034...3215618...109775311....3761355239....128132389259
.13.10622..585134..28178880..1514903717...81677753297...4376310739604
.21.38809.3291766.246983338.20908710812.1774108927621.149522986489383
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2)
k=2: a(n) = 3*a(n-1) +a(n-2) +4*a(n-3) +4*a(n-4) for n>5
k=3: [order 12] for n>13
k=4: [order 36] for n>39
EXAMPLE
Some solutions for n=6 k=4
..0..0..1..0. .0..0..1..0. .0..0..1..0. .0..0..1..0. .0..0..1..0
..0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0. .0..1..1..0
..0..1..0..0. .0..1..0..0. .0..0..0..1. .0..1..0..0. .0..1..1..0
..1..1..0..1. .1..0..0..1. .1..1..0..1. .0..0..0..1. .0..0..0..0
..0..1..1..0. .0..1..1..0. .0..0..1..0. .1..1..1..0. .0..1..1..1
..1..0..0..1. .0..0..1..0. .1..1..0..0. .1..1..0..1. .0..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 21 2018
STATUS
approved