OFFSET
1,2
COMMENTS
Column 6 of A298183.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) -5*a(n-2) +8*a(n-3) -14*a(n-4) +5*a(n-5) -17*a(n-6) +19*a(n-7) +21*a(n-8) -2*a(n-9) +50*a(n-10) -75*a(n-11) +28*a(n-12) -57*a(n-13) +28*a(n-14) -52*a(n-15) +38*a(n-16) -22*a(n-17) -12*a(n-18) +4*a(n-19) +20*a(n-20) +8*a(n-21) -8*a(n-22)
EXAMPLE
Some solutions for n=7
..0..0..0..1..1..1. .0..0..1..1..0..0. .0..0..1..1..1..1. .0..0..0..0..1..1
..0..0..0..1..1..1. .0..0..1..1..0..0. .0..0..1..1..1..1. .0..0..0..0..1..1
..0..0..0..0..0..0. .0..0..1..1..0..0. .0..0..0..0..0..0. .0..0..0..0..1..1
..1..1..0..0..0..0. .0..0..0..0..0..0. .1..1..0..0..0..0. .0..0..0..0..1..1
..1..1..0..0..0..0. .1..1..0..0..1..1. .1..1..0..0..0..0. .1..1..1..0..0..0
..1..1..0..0..0..0. .1..1..0..0..1..1. .1..1..0..0..0..0. .1..1..1..0..0..0
..1..1..0..0..0..0. .1..1..0..0..1..1. .1..1..0..0..0..0. .1..1..1..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2018
STATUS
approved