OFFSET
1,1
COMMENTS
Column 4 of A303969.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +2*a(n-3) -a(n-4) -2*a(n-5) +7*a(n-6) -8*a(n-7) -2*a(n-8) -11*a(n-9) +a(n-10) +6*a(n-11) -12*a(n-12) +4*a(n-13) +4*a(n-14) +18*a(n-15) +7*a(n-16) -3*a(n-17) +6*a(n-18) +8*a(n-19) +2*a(n-20) -6*a(n-21) -10*a(n-22) -5*a(n-23) +a(n-24) -6*a(n-25) -6*a(n-26) -7*a(n-27) +a(n-28) +5*a(n-29) +2*a(n-32) +4*a(n-33) +2*a(n-34) -a(n-35) -a(n-36) for n>37
EXAMPLE
Some solutions for n=5
..0..0..1..1. .0..0..0..1. .0..1..1..1. .0..1..0..0. .0..0..0..1
..0..0..0..1. .1..0..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0
..0..0..0..0. .0..0..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0
..1..0..0..0. .0..0..0..0. .1..1..1..1. .0..0..0..0. .1..0..0..0
..0..0..0..0. .1..0..0..0. .1..1..1..1. .0..0..0..1. .0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 03 2018
STATUS
approved