OFFSET
1,1
COMMENTS
Column 6 of A214141
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..65
FORMULA
Empirical: a(n) = 4156*a(n-1) -1272609*a(n-2) +80884549*a(n-3) -1222656178*a(n-4) -19887912212*a(n-5) +527430399664*a(n-6) -2643328241280*a(n-7) +3940919419904*a(n-8) -1580167634944*a(n-9)
EXAMPLE
Some solutions for n=4
..0..1..2..0..2..0..1....0..1..2..3..4..0..4....0..1..0..1..2..1..2
..1..2..3..1..3..4..0....4..2..4..1..2..1..3....1..0..2..3..1..2..0
..4..3..2..3..4..3..1....1..0..1..3..4..0..4....2..4..3..4..2..3..1
..3..4..0..1..2..0..2....3..2..0..1..3..1..0....0..3..2..1..3..4..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 05 2012
STATUS
approved