OFFSET
1,2
COMMENTS
Column 2 of A198654.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n)=37*a(n-1)-502*a(n-2)+2817*a(n-3)-2399*a(n-4)-35852*a(n-5)+95494*a(n-6)+127482*a(n-7)-450424*a(n-8)-527274*a(n-9)+944990*a(n-10)+1784424*a(n-11)-456873*a(n-12)-2779579*a(n-13)-1492318*a(n-14)+1457417*a(n-15)+1939617*a(n-16)+390628*a(n-17)-559484*a(n-18)-375300*a(n-19)-62900*a(n-20).
EXAMPLE
Some solutions with all values 0 to 6 for n=7
..0..0....0..0....0..1....0..0....0..0....0..0....0..0....0..1....0..1....0..1
..1..1....1..1....0..1....1..1....1..1....1..1....1..2....0..1....0..1....0..1
..2..2....2..2....2..3....2..2....2..3....2..2....1..2....2..2....2..2....2..2
..3..4....3..3....2..3....3..4....2..3....3..3....3..3....3..4....3..3....3..4
..3..4....4..4....4..4....3..4....4..4....4..5....4..4....3..4....4..4....3..4
..5..6....5..6....5..6....5..5....5..5....4..5....5..5....5..6....5..6....5..5
..5..6....5..6....5..6....6..6....6..6....6..6....6..6....5..6....5..6....6..6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 28 2011
STATUS
approved