OFFSET
1,1
COMMENTS
Table starts
.......4..........10...........20.............35..............56
......16.........100..........400...........1225............3136
......64........1000.........6094..........27790..........102232
.....256.......10000........86701.........497958.........2332222
....1024......100000......1268572........8573507........45648753
....4096.....1000000.....18794636......152271025.......879830242
...16384....10000000....279128617.....2780848289.....17642791909
...65536...100000000...4142692993....51325449985....365858453951
..262144..1000000000..61481903024...949582166068...7713944320142
.1048576.10000000000.912523782542.17572045403455.163629606236587
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..198
FORMULA
Empirical for column k:
k=1: a(n) = 4*a(n-1)
k=2: a(n) = 10*a(n-1)
k=3: [order 15]
k=4: [order 47]
Empirical: rows n=1..6 are polynomials of degree 3*n for k>0,0,1,4,7,10
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..1....0..1..1..3....1..2..3..3....2..2..3..3....0..0..0..1
..2..2..2..2....0..1..3..3....0..2..2..2....0..3..3..3....0..2..2..3
..1..3..3..3....0..2..3..3....1..1..1..1....0..0..1..2....3..3..3..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Apr 05 2013
STATUS
approved