OFFSET
1,1
COMMENTS
Column 4 of A214238
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..65
FORMULA
Empirical: a(n) = 10629*a(n-1) -17350472*a(n-2) +7613269646*a(n-3) -1150563633112*a(n-4) +68845322541884*a(n-5) -1602676444724896*a(n-6) +14117645719614888*a(n-7) -45952444522339344*a(n-8) +33030412555840128*a(n-9)
EXAMPLE
Some solutions for n=4
..0..1..0..1..2....0..1..0..1..2....0..1..0..2..1....0..1..0..1..2
..1..2..1..0..3....1..2..1..2..0....1..0..1..3..0....1..2..1..0..3
..2..0..2..1..4....2..0..2..0..3....2..1..2..0..1....0..1..2..4..2
..0..1..3..0..5....0..2..3..1..2....1..4..3..1..3....1..3..4..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 08 2012
STATUS
approved