OFFSET
1,2
COMMENTS
Table starts
....1........2........3.........6.........12..........24............48
....2.......14.......36........96........288.........864..........2592
....5.......81......192.......508.......1680........5304.........17184
...14......486.....1024......3088......12816.......53132........232156
...41.....2916.....5440.....18440......87924......510680.......2934756
..122....17496....29120....111900.....647648.....5038428......38872396
..365...104976...155904....675600....4706400....48675088.....512150588
.1094...629856...834176...4094240...34281472...477786368....6767371752
.3281..3779136..4463424..24794560..248629316..4669603380...89090043684
.9842.22674816.23883904.150165020.1807849760.45596095332.1174911360788
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..336
FORMULA
Empirical for column k:
k=1: a(n) = 4*a(n-1) -3*a(n-2)
k=2: a(n) = 6*a(n-1) for n>3
k=3: [order 9] for n>10
k=4: [order 14] for n>15
k=5: [order 27] for n>28
k=6: [order 64] for n>66
Empirical for row n:
n=1: a(n) = 2*a(n-1) for n>3
n=2: a(n) = 3*a(n-1) for n>4
n=3: [order 36] for n>38
n=4: [order 84] for n>88
EXAMPLE
Some solutions for n=4 k=4
..0..1..1..2. .0..1..2..0. .0..1..2..0. .0..0..1..2. .0..1..2..0
..1..0..2..2. .0..2..2..0. .0..0..1..2. .0..0..1..2. .0..1..1..2
..1..1..0..2. .0..2..2..1. .1..2..2..1. .0..1..1..2. .1..1..2..0
..1..2..2..0. .0..1..1..0. .1..2..2..0. .0..2..1..0. .1..1..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 16 2016
STATUS
approved