OFFSET
1,1
COMMENTS
Column 2 of A203057
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 21*a(n-1) -50*a(n-2) +2261*a(n-3) +5179*a(n-4) +58301*a(n-5) +113102*a(n-6) +454821*a(n-7) +550157*a(n-8) +1071256*a(n-9) +600336*a(n-10) +518400*a(n-11)
EXAMPLE
Some solutions for n=5
..1..2....2..4....1..1....5..1....0..2....4..5....0..5....5..0....0..3....2..1
..3..5....2..4....1..5....5..2....2..3....5..5....0..5....5..5....1..5....2..1
..3..5....3..0....0..5....2..1....4..3....2..2....1..0....2..1....2..5....0..2
..2..5....3..3....5..3....0..5....4..2....3..0....4..5....1..4....4..0....0..3
..0..2....1..0....5..1....1..5....3..2....4..4....3..5....4..4....5..5....2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 28 2011
STATUS
approved