OFFSET
1,2
COMMENTS
Table starts
..1...2.....3......4........6.........9.........13...........19............28
..2...5.....9.....20.......41........85........178..........369...........769
..3...9....26.....77......226.......665.......1960.........5769.........16983
..4..20....77....326.....1373......5793......24347.......102398........431050
..6..41...226...1373.....8257.....49302.....295083......1768323......10586331
..9..85...665...5793....49302....420519....3590821.....30650456.....261518933
.13.178..1960..24347...295083...3590821...43655680....530696748....6452840307
.19.369..5769.102398..1768323..30650456..530696748...9196006628..159316011413
.28.769.16983.431050.10586331.261518933.6452840307.159316011413.3931962260999
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..391
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-3)
k=2: a(n) = a(n-1) +2*a(n-2) +a(n-3) -a(n-4)
k=3: [order 10]
k=4: [order 14]
k=5: [order 40]
k=6: [order 78]
EXAMPLE
Some solutions for n=5 k=4
..0..1..0..0. .0..1..0..0. .0..0..0..0. .1..0..0..0. .1..1..0..0
..0..1..0..0. .1..1..1..0. .0..1..1..0. .1..0..1..1. .0..0..0..0
..1..0..0..0. .0..1..0..0. .0..0..0..1. .0..0..0..0. .0..0..1..0
..1..0..0..1. .1..0..1..0. .0..0..0..1. .0..0..0..0. .0..0..1..0
..0..0..0..1. .1..0..1..0. .0..1..1..0. .1..1..0..0. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 15 2017
STATUS
approved