OFFSET
1,2
COMMENTS
Column 3 of A300639.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) -19*a(n-2) +28*a(n-3) -32*a(n-4) +42*a(n-5) -43*a(n-6) +23*a(n-7) -29*a(n-8) +16*a(n-9) +12*a(n-10) +64*a(n-11) +58*a(n-12) -110*a(n-13) -198*a(n-14) -136*a(n-15) +100*a(n-16) +236*a(n-17) +198*a(n-18) +90*a(n-19) +30*a(n-20) -16*a(n-21) -76*a(n-22) -64*a(n-23) +7*a(n-24) +23*a(n-25) -7*a(n-26) -20*a(n-27) -4*a(n-28) +10*a(n-29) +5*a(n-30) -a(n-31) -a(n-32)
EXAMPLE
Some solutions for n=5
..0..0..0. .0..0..1. .0..0..0. .0..0..0. .0..0..1. .0..0..0. .0..0..0
..1..1..0. .1..1..1. .1..1..0. .0..0..1. .0..1..1. .1..1..1. .1..1..1
..1..0..1. .1..0..0. .0..1..0. .0..1..0. .1..1..1. .0..0..0. .0..0..1
..0..1..0. .0..1..1. .0..1..1. .1..0..1. .0..0..0. .1..1..1. .1..0..0
..0..1..0. .0..0..1. .0..0..0. .0..1..1. .1..1..1. .0..0..1. .1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 10 2018
STATUS
approved