OFFSET
1,1
COMMENTS
Column 5 of A274728.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +33*a(n-2) +66*a(n-3) +94*a(n-4) -115*a(n-5) -155*a(n-6) -255*a(n-7) +236*a(n-8) +152*a(n-9) +61*a(n-10) -213*a(n-11) +90*a(n-12) -5*a(n-13) +13*a(n-14) -4*a(n-15) for n>19
EXAMPLE
Some solutions for n=4
..0..1..0..2..0. .0..1..0..2..1. .0..1..2..0..0. .0..1..0..1..1
..2..0..1..0..1. .2..0..2..0..2. .1..2..1..2..1. .2..0..2..0..2
..0..2..0..2..0. .0..2..0..2..0. .0..1..2..1..2. .1..2..0..2..0
..2..0..2..0..2. .2..0..1..1..2. .2..0..1..0..1. .2..0..2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 03 2016
STATUS
approved