OFFSET
1,1
COMMENTS
Table starts
....3.......6.........14............32................72..................164
....6......30........156...........810..............4106................21132
...14.....156.......1888.........22242............258720..............3044922
...32.....810......22242........604412..........16041854............432845880
...72....4106.....258720......16041854.........976810146..........60277582112
..164...21132....3044922.....432845880.......60277582112........8524103612876
..372..108124...35640158...11591229010.....3697656930974.....1196624830872094
..844..553828..417759376..311132395064...227187542722224...168396084501288492
.1916.2837376.4896355616.8346793174230.13955749970865816.23680768603975178514
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) +2*a(n-2) +2*a(n-3)
k=2: [order 10]
k=3: [order 35]
EXAMPLE
Some solutions for n=3 k=4
..2..3..3..1....2..3..2..2....3..2..2..2....1..3..2..3....3..2..2..1
..1..2..1..2....3..2..0..3....2..0..0..1....3..1..1..0....2..1..0..0
..1..3..3..1....2..0..0..3....2..1..0..2....3..1..1..0....2..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 05 2014
STATUS
approved