OFFSET
1,1
COMMENTS
Column 6 of A229460
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 60*a(n-1) -1482*a(n-2) +20016*a(n-3) -167163*a(n-4) +924894*a(n-5) -3537110*a(n-6) +9593166*a(n-7) -18693789*a(n-8) +26218062*a(n-9) -26188161*a(n-10) +18139608*a(n-11) -8262712*a(n-12) +2220864*a(n-13) -266256*a(n-14) for n>15
EXAMPLE
Some solutions for n=3
..0..1..1..2..1..2....0..1..2..0..2..0....0..1..2..0..2..1....0..1..2..1..0..1
..1..2..0..1..0..1....1..2..0..2..1..2....1..0..1..0..1..0....1..0..1..2..1..0
..2..1..2..0..2..0....0..0..2..1..0..1....0..1..0..1..0..2....1..2..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 24 2013
STATUS
approved