OFFSET
1,2
COMMENTS
Table starts
...1.....2.......4........8.........16...........32............64
...2.....8......30......112........420.........1576..........5912
...4....30.....141......684.......3282........15874.........76613
...8...112.....684.....4893......34001.......240701.......1696681
..16...420....3282....34001.....332676......3343997......33584061
..32..1576...15874...240701....3343997.....47791549.....686168124
..64..5912...76613..1696681...33584061....686168124...14187207394
.128.22176..370087.11974403..336821283...9812796379..291309897184
.256.83184.1787161.84503446.3382396016.140721354959.6009246932279
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1)
k=2: a(n) = 4*a(n-1) -2*a(n-2) +4*a(n-3)
k=3: [order 11]
k=4: [order 35] for n>37
EXAMPLE
Some solutions for n=5 k=4
..0..0..0..1. .0..1..1..0. .0..0..1..0. .0..0..0..1. .0..0..0..0
..1..0..0..0. .0..1..0..1. .0..1..0..0. .0..0..0..1. .1..0..0..0
..1..1..1..0. .0..1..1..1. .0..0..0..0. .0..1..0..1. .1..1..1..0
..1..1..1..1. .0..1..1..1. .0..0..0..0. .1..0..0..1. .0..1..1..1
..0..0..0..0. .0..1..1..0. .1..0..0..1. .1..0..0..1. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jun 10 2018
STATUS
approved