OFFSET
1,1
COMMENTS
Table starts
......81........255..........825...........2817..............9717
.....255.......1231.........6217..........34163............191657
.....825.......6217........47831.........420133...........3722333
....2817......34163.......420133........6154349..........89430035
....9717.....191657......3722333.......89430035........2074360867
...34317....1116735.....34857701.....1381705469.......51617074157
..122305....6597729....327044595....21112919819.....1250715634759
..442285...39752795...3142571647...330530592515....31213918081267
.1612085..241456349..30163324455..5132785239389...766423213825979
.5935493.1481423855.292580627371.80558311836989.19091407245029811
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 20]
k=2: [order 38]
k=3: [order 83]
EXAMPLE
Some solutions for n=3 k=4
..0..1..2..1..1....0..0..2..0..2....0..0..1..1..1....0..2..0..2..1
..2..0..0..1..1....2..2..2..2..0....1..1..1..0..0....0..2..0..2..0
..1..1..2..1..1....0..2..0..2..2....0..1..0..1..1....2..0..2..0..2
..2..0..1..0..2....2..1..2..2..0....1..1..1..1..0....2..0..2..2..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 31 2014
STATUS
approved