OFFSET
1,1
COMMENTS
Column 5 of A281326.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..109
FORMULA
Empirical: a(n) = 118*a(n-1) -2945*a(n-2) -33362*a(n-3) +26056*a(n-4) +748350*a(n-5) +34803*a(n-6) -5091278*a(n-7) +5510971*a(n-8) +3636892*a(n-9) -50799348*a(n-10) +55421328*a(n-11) -83423360*a(n-12) +24617536*a(n-13) -57226304*a(n-14) -611072*a(n-15) -12054784*a(n-16) for n>18.
EXAMPLE
Some solutions for n=2
..0..1..0..1..1. .0..0..1..1..2. .0..1..0..2..2. .0..1..0..0..1
..1..2..0..0..0. .0..2..0..0..2. .0..2..1..1..1. .1..1..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2017
STATUS
approved