OFFSET
1,2
COMMENTS
Column 3 of A277945.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 17*a(n-1) -46*a(n-2) -74*a(n-3) +248*a(n-4) +365*a(n-5) -302*a(n-6) -2897*a(n-7) +586*a(n-8) +9050*a(n-9) +1379*a(n-10) -16481*a(n-11) -15496*a(n-12) +28568*a(n-13) +32667*a(n-14) -39070*a(n-15) -26031*a(n-16) +26346*a(n-17) +8108*a(n-18) -5448*a(n-19) -1536*a(n-20) for n>21
EXAMPLE
Some solutions for n=4
..0..2..1. .0..1..2. .0..1..0. .0..1..0. .0..1..2. .0..1..0. .0..2..0
..1..2..0. .2..1..0. .0..2..1. .2..2..2. .0..2..0. .2..2..2. .1..2..1
..1..1..0. .0..2..1. .1..0..0. .0..1..0. .2..0..1. .0..1..0. .1..0..2
..0..2..1. .1..1..0. .0..1..2. .0..1..2. .2..0..2. .2..0..2. .0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 05 2016
STATUS
approved