OFFSET
1,1
COMMENTS
Table starts
..2052..1623..2471..3506..4257..5737..8117.12306.18187.26561.38040.55162.80519
..1623..1920..2493..2863..3123..4129..5711..7604..9713.12764.17344.23754.32224
..2471..2493..3092..3502..3775..4868..6540..8551.10761.13991.18817.25579.34473
..3506..2863..3502..3924..4209..5371..7132..9238.11551.14945.20018.27116.36445
..4257..3123..3775..4209..4498..5727..7575..9778.12188.15746.21068.28510.38276
..5737..4129..4868..5371..5727..7090..9090.11457.14037.17836.23484.31351.41643
..8117..5711..6540..7132..7575..9090.11268.13821.16593.20653.26657.34977.45825
.12306..7604..8551..9238..9778.11457.13821.16568.19544.23879.30251.39038.50462
.18187..9713.10761.11551.12188.14037.16593.19544.22726.27344.34094.43364.55374
.26561.12764.13991.14945.15746.17836.20653.23879.27344.32326.39535.49373.62062
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..1681
FORMULA
Empirical for column k:
k=1: a(n) = 3*a(n-1) -3*a(n-2) +a(n-3) +a(n-4) -2*a(n-5) +2*a(n-6) -2*a(n-7) +a(n-8) for n>11
k=2: a(n) = 2*a(n-1) -a(n-2) +a(n-3) -2*a(n-5) +a(n-6) -2*a(n-7) +2*a(n-8) +a(n-11) -a(n-12) for n>15
k=3,5,7: a(n) = 3*a(n-1) -2*a(n-2) -2*a(n-3) +4*a(n-4) -3*a(n-5) +2*a(n-7) -a(n-8) for n>10
k=4: a(n) = 4*a(n-1) -7*a(n-2) +8*a(n-3) -6*a(n-4) +a(n-5) +3*a(n-6) -4*a(n-7) +3*a(n-8) -a(n-9) for n>11
k=6: a(n) = 3*a(n-1) -3*a(n-2) +a(n-3) +2*a(n-4) -5*a(n-5) +4*a(n-6) -a(n-7) -a(n-8) +2*a(n-9) -a(n-10) for n>12
EXAMPLE
Some solutions for n=2 k=4
..1..1..1..1..1..1..0....1..0..0..0..0..0..0....1..1..1..1..0..1..0
..0..0..0..0..0..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....2..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....2..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..2..1..1..1..1..1....2..0..0..0..0..0..0....2..1..1..1..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Apr 16 2013
STATUS
approved