OFFSET
1,1
COMMENTS
Column 4 of A217273.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..38
FORMULA
Empirical: a(n) = 102*a(n-1) -2037*a(n-2) +2098*a(n-3) +111987*a(n-4) -459828*a(n-5) -54016*a(n-6) +1828299*a(n-7) -2079066*a(n-8) +455875*a(n-9) +352710*a(n-10) -165978*a(n-11) +15218*a(n-12) +1308*a(n-13) -111*a(n-14) +a(n-15).
EXAMPLE
Some solutions for n=3
..0..1..0..0....1..1..0..2....1..3..1..1....1..0..0..1....1..2..2..1
..1..1..3..2....1..1..2..1....0..2..1..0....1..2..0..3....2..0..0..1
..2..0..1..1....2..0..1..0....0..1..2..0....0..3..0..1....2..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 29 2012
STATUS
approved