OFFSET
1,8
COMMENTS
Table starts
.0.....0........0..........0............0...............0.................0
.0.....1........3.........19...........91.............399..............1734
.0.....3.......60........532.........4420...........34531............257416
.0....19......532.......8087.......116624.........1592250..........20788531
.0....91.....4420.....116624......2993934........71707838........1644385909
.0...399....34531....1592250.....71707838......3007934404......120672330232
.0..1734...257416...20788531...1644385909....120672330232.....8473366210380
.0..7257..1862717..264040297..36631580212...4702791428260...577497122717510
.0.29754.13180270.3282238215.797807876394.179057922328623.38429377558548084
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)
k=2: [order 24]
k=3: [order 32]
k=4: [order 57] for n>58
EXAMPLE
Some solutions for n=4 k=4
..1..1..1..0. .1..0..1..1. .0..0..1..0. .1..1..1..0. .0..0..0..1
..0..0..1..0. .1..0..1..1. .1..1..0..0. .1..0..0..1. .1..0..1..0
..0..0..1..0. .0..0..0..0. .1..0..1..0. .0..0..1..1. .1..0..1..1
..0..1..1..1. .0..1..0..1. .1..1..0..0. .1..0..0..1. .0..1..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 06 2017
STATUS
approved