OFFSET
1,1
COMMENTS
Column 3 of A260841
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-3) +6*a(n-4) -9*a(n-6) -16*a(n-7) -10*a(n-8) +4*a(n-9) +7*a(n-10) +6*a(n-12) +8*a(n-14) +10*a(n-15) +2*a(n-16) +4*a(n-17) +4*a(n-19) +3*a(n-20) +2*a(n-22) for n>24
EXAMPLE
Some solutions for n=4
..1..0..1..0..0....0..0..0..0..0....0..0..0..0..1....1..0..0..0..1
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....1..0..0..1..1
..1..0..0..0..0....1..1..0..0..1....1..1..0..0..0....0..0..0..0..0
..0..0..0..1..0....0..0..0..0..0....0..0..0..0..1....0..0..0..0..0
..0..0..0..1..0....0..0..0..0..0....0..0..0..0..1....1..1..0..0..1
..1..0..0..0..0....0..0..1..1..0....0..1..0..0..0....1..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 01 2015
STATUS
approved