OFFSET
1,1
COMMENTS
Row 4 of A252558
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 78*a(n-3) -1701*a(n-6) +7656*a(n-9) -30460*a(n-12) +70284*a(n-15) -70416*a(n-18) +25968*a(n-21) -1408*a(n-24) for n>30
EXAMPLE
Some solutions for n=4
..3..1..0..0..1..3....2..0..2..2..3..2....0..0..1..0..0..1....0..2..0..0..2..2
..2..2..3..2..2..0....3..3..1..3..3..1....3..2..2..3..2..2....2..0..2..2..3..2
..3..2..2..3..2..2....3..2..2..3..2..2....2..3..2..2..3..2....3..3..1..3..0..1
..0..1..3..3..1..3....2..3..2..2..0..2....3..0..1..0..3..1....0..2..2..3..2..2
..0..2..0..2..2..3....0..3..1..3..3..1....3..2..2..3..2..2....2..3..2..2..3..2
..0..2..2..0..2..2....3..2..2..3..2..2....2..3..2..2..3..2....3..3..1..3..3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2014
STATUS
approved