OFFSET
1,1
COMMENTS
Column 5 of A252640
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 401*a(n-3) -58334*a(n-6) +3905774*a(n-9) -123912796*a(n-12) +1797645518*a(n-15) -16104263185*a(n-18) +106963513595*a(n-21) -484501448416*a(n-24) +1241730094740*a(n-27) -1500310993968*a(n-30) +684083769472*a(n-33) -33538252800*a(n-36) for n>46
EXAMPLE
Some solutions for n=3
..3..1..0..3..1..0..3....3..2..2..3..2..2..3....3..3..1..3..3..1..0
..2..2..3..2..2..0..2....2..3..2..2..3..2..2....1..3..0..1..3..3..1
..0..2..2..3..2..2..3....3..3..1..0..3..1..3....1..2..1..1..2..1..1
..3..1..3..3..1..3..0....0..2..2..0..2..2..3....0..3..1..0..3..1..3
..2..2..3..2..2..0..2....2..3..2..2..3..2..2....1..3..3..1..3..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2014
STATUS
approved