OFFSET
1,1
COMMENTS
Table starts
......2.........4............21............139.............913............6276
......4........12...........144...........2494...........39504..........697059
.....21.......144..........9430.........442490........18880359.......845419469
....139......2494........442490.......50969202......5571354016....635625937026
....913.....39504......18880359.....5571354016...1548060050659.450250672900459
...6276....697059.....845419469...635625937026.450250672900459
..43544..12059186...37380126077.71568693539665
.301609.208611750.1652305192566
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..59
FORMULA
Empirical for column k:
k=1: [order 22]
k=2: [order 94]
EXAMPLE
Some solutions for n=2 k=4
..0..2..0..2..1..0....0..2..2..1..0..1....0..1..2..2..2..0....0..1..0..2..1..0
..1..1..0..1..2..1....1..1..0..0..2..2....1..2..0..0..1..1....2..1..2..0..1..2
..0..2..1..2..2..0....0..2..1..1..0..1....1..2..2..1..2..0....0..0..0..2..0..0
..2..0..1..0..2..1....2..0..1..2..0..2....0..1..1..1..0..2....2..1..2..2..1..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 27 2013
STATUS
approved