OFFSET
1,2
COMMENTS
Column 7 of A281080.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) -32*a(n-2) +56*a(n-3) -48*a(n-4) +16*a(n-5) +4*a(n-8) -20*a(n-9) +26*a(n-10) +18*a(n-11) -66*a(n-12) +46*a(n-13) -8*a(n-15) -6*a(n-16) +14*a(n-17) -4*a(n-18) -12*a(n-19) -5*a(n-20) +25*a(n-21) -10*a(n-22) -6*a(n-23) +7*a(n-24) -3*a(n-25) -6*a(n-26) +10*a(n-27) -2*a(n-28) -2*a(n-29) -a(n-32) +a(n-33) for n>42
EXAMPLE
Some solutions for n=4
..0..1..1..0..1..0..1. .0..1..1..1..1..0..1. .0..1..0..1..0..1..1
..0..0..1..0..0..1..0. .1..0..0..0..1..0..1. .1..0..1..0..1..0..0
..1..0..1..1..0..1..0. .0..1..1..0..1..0..0. .1..0..1..0..1..0..1
..1..0..0..1..1..0..1. .0..1..0..1..0..1..0. .1..0..1..0..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2017
STATUS
approved