OFFSET
1,1
COMMENTS
Table starts
..2....4......10.........24..........56..........132...........312
..3....7......35........157.........713.........3263.........14895
..4...14.....118........919........7562........64721........563496
..7...36.....582.......8265......126286......2059061......34514871
.10...72....2000......49921.....1363144.....40760821....1277623744
.15..170....8353.....382690....19210586...1063706501...63085436203
.24..411...37422....3076452...278945445..27923918285.3004792552569
.35..879..135463...19781372..3200032085.576407548906
.54.2106..580528..154994425.46095401280
.83.4874.2403439.1144262410
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = a(n-2) +2*a(n-3)
k=2: [order 13]
Empirical for row n:
n=1: a(n) = 2*a(n-1) +2*a(n-3)
n=2: [order 26] for n>28
EXAMPLE
Some solutions for n=4 k=4
..2..3..0..3....3..2..2..2....3..0..0..2....3..0..2..0....3..2..2..2
..2..1..2..3....3..1..2..1....2..3..2..0....2..3..0..2....2..1..2..0
..2..0..1..0....2..1..2..2....3..1..2..0....3..1..1..0....3..2..0..2
..2..0..1..0....2..0..0..1....3..2..2..0....3..2..2..1....2..3..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved