OFFSET
1,2
COMMENTS
Column 3 of A300966.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +5*a(n-2) +2*a(n-3) -30*a(n-4) -29*a(n-5) -3*a(n-6) +26*a(n-7) +89*a(n-8) +79*a(n-9) -20*a(n-10) -52*a(n-11) -28*a(n-12) +96*a(n-13) +12*a(n-14) +4*a(n-15) -39*a(n-16) -17*a(n-17) -4*a(n-18) -3*a(n-19) +7*a(n-20) -3*a(n-21) +2*a(n-22) for n > 24.
EXAMPLE
Some solutions for n=5
..0..1..1. .0..1..1. .0..0..0. .0..0..1. .0..0..0. .0..1..1. .0..1..1
..1..1..0. .1..1..0. .0..1..0. .0..0..0. .0..1..0. .1..1..0. .1..1..1
..0..1..1. .1..0..0. .0..0..1. .1..0..0. .0..0..0. .1..0..0. .1..1..0
..1..1..1. .0..1..0. .1..0..0. .0..1..0. .1..1..1. .1..1..1. .0..1..1
..1..1..0. .0..0..1. .0..0..0. .0..0..1. .1..1..1. .1..1..0. .1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 17 2018
STATUS
approved