OFFSET
1,12
COMMENTS
Table starts
.1...1...1....1......1.......1.........1..........1............1.............1
.1...1...1....2......5.......9........22.........45..........101...........218
.1...1..12....5.....33......55.......132........272..........630..........1355
.1...2...5....8.....41.....117.......476.......1743.........7078.........28743
.1...5..33...41....285....1540......5869......31464.......164344........875093
.1...9..55..117...1540...12411.....89125.....826509......7492106......69199615
.1..22.132..476...5869...89125....902141...12982595....174024827....2513147146
.1..45.272.1743..31464..826509..12982595..310347496...6868847887..161346598727
.1.101.630.7078.164344.7492106.174024827.6868847887.249358437986.9535286392860
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..197
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1)
k=2: a(n) = a(n-1) +3*a(n-2) -2*a(n-4) for n>5
k=3: [order 12] for n>13
k=4: [order 34] for n>36
EXAMPLE
Some solutions for n=5 k=4
..0..0..1..1. .0..0..1..1. .0..1..1..1. .0..0..1..1. .0..0..1..1
..0..0..1..1. .0..0..1..1. .1..1..1..1. .0..0..1..1. .0..0..1..1
..1..1..1..0. .0..0..0..0. .0..1..1..1. .0..0..1..1. .0..0..1..1
..1..1..1..1. .1..1..0..0. .1..1..0..0. .0..0..1..1. .1..1..1..1
..1..1..1..0. .1..1..0..0. .1..1..0..0. .0..0..1..1. .1..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 11 2018
STATUS
approved