OFFSET
1,5
COMMENTS
Table starts
..0.....1.......1.........2...........3.............5...............8
..1.....4......17........61.........216...........793............2907
..1....17.....113.......628........3669.........21792..........128610
..2....61.....628......5663.......51862........486305.........4532025
..3...216....3669.....51862......766231......11576060.......173419447
..5...793...21792....486305....11576060.....281861630......6789384478
..8..2907..128610...4532025...173419447....6789384478....262361247480
.13.10622..758715..42210111..2597671575..163627792463..10149632583491
.21.38809.4478515.393354513.38941599079.3947880819311.393165011518395
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 14] for n>16
k=4: [order 49] for n>51
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..1. .0..1..1..0. .0..1..0..1. .0..0..0..1. .0..0..0..0
..1..0..1..0. .1..0..1..0. .1..0..1..1. .1..0..1..0. .0..1..0..1
..1..1..1..0. .0..1..0..0. .1..0..0..1. .1..0..1..0. .0..1..0..1
..0..0..0..1. .1..0..1..1. .1..1..1..0. .1..0..1..1. .0..1..0..1
..1..1..0..0. .0..0..1..1. .1..0..0..1. .0..1..0..1. .1..0..0..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 23 2018
STATUS
approved