OFFSET
1,2
COMMENTS
Column 3 of A305089.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +3*a(n-2) +12*a(n-3) -2*a(n-4) -36*a(n-5) -26*a(n-6) +9*a(n-7) +47*a(n-8) +11*a(n-9) +6*a(n-10) -2*a(n-11) -4*a(n-12) -16*a(n-13) -8*a(n-14) for n>16
EXAMPLE
Some solutions for n=5
..0..0..1. .0..0..0. .0..1..1. .0..1..0. .0..1..1. .0..1..0. .0..0..0
..0..1..1. .0..1..1. .0..0..1. .1..1..1. .0..1..0. .1..1..1. .0..1..0
..1..1..1. .0..0..1. .1..1..1. .1..0..1. .0..0..0. .1..1..1. .1..0..1
..1..0..0. .0..0..0. .1..1..0. .0..0..1. .1..1..0. .1..0..0. .1..1..1
..1..1..0. .1..0..1. .1..0..0. .1..1..1. .0..1..0. .1..0..1. .0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 25 2018
STATUS
approved