OFFSET
1,2
COMMENTS
Column 3 of A306143.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +11*a(n-2) +16*a(n-3) -34*a(n-4) -20*a(n-5) +28*a(n-6) -49*a(n-8) -17*a(n-9) +37*a(n-10) -2*a(n-11) -36*a(n-12) -56*a(n-13) -16*a(n-14) +16*a(n-15) for n>16
EXAMPLE
Some solutions for n=5
..0..0..1. .0..1..1. .0..0..0. .0..1..0. .0..1..1. .0..1..0. .0..1..1
..0..1..0. .1..1..0. .1..0..1. .1..0..1. .1..1..0. .0..1..1. .0..0..1
..0..0..0. .1..0..0. .1..0..1. .1..0..0. .1..0..0. .0..0..0. .1..0..0
..1..1..0. .0..1..0. .1..1..0. .0..0..1. .0..1..0. .0..1..1. .1..0..0
..0..0..0. .0..0..0. .0..0..1. .1..0..1. .0..0..1. .0..1..0. .0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 22 2018
STATUS
approved