OFFSET
1,1
COMMENTS
Column 4 of A203887
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 115*a(n-1) +17016*a(n-2) -763308*a(n-3) -1177416*a(n-4) +49714560*a(n-5) +35870688*a(n-6) -153031680*a(n-7)
EXAMPLE
Some solutions for n=4
..4..4..1..1..1....2..2..0..5..1....5..3..5..6..3....2..4..1..5..0
..6..4..4..1..0....5..2..2..0..5....6..5..0..5..6....2..2..4..1..5
..2..6..4..4..1....6..5..2..2..0....1..6..5..4..5....5..2..2..4..1
..2..2..6..4..4....4..6..5..2..2....6..2..6..5..3....4..5..2..2..4
..2..3..2..6..4....1..4..6..5..2....5..6..0..6..5....0..4..5..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2012
STATUS
approved