OFFSET
1,1
COMMENTS
Column 1 of A234380
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 25*a(n-1) -a(n-2) -1496*a(n-3) +1581*a(n-4) +26414*a(n-5) -21436*a(n-6) -163909*a(n-7) +88557*a(n-8) +442265*a(n-9) -137417*a(n-10) -545671*a(n-11) +88129*a(n-12) +301041*a(n-13) -29854*a(n-14) -68212*a(n-15) +5810*a(n-16) +3264*a(n-17) -396*a(n-18) +36*a(n-19)
EXAMPLE
Some solutions for n=1
..1..0..1....0..2..2....1..2..1....1..2..1....0..2..2....1..1..1....2..0..2
..2..2..2....0..1..2....1..0..2....2..2..1....0..2..1....2..0..2....1..2..0
..2..1..0....1..1..1....2..1..0....1..1..0....0..0..1....2..2..1....1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2013
STATUS
approved