OFFSET
1,1
COMMENTS
Column 5 of A219421.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..39
FORMULA
Empirical: a(n) = 14*a(n-1) -17*a(n-2) +117*a(n-3) -355*a(n-4) +550*a(n-5) -1954*a(n-6) +1579*a(n-7) -1059*a(n-8) -1065*a(n-9) +1097*a(n-10) +8*a(n-11) -153*a(n-12) +45*a(n-13) -6*a(n-14) for n>15.
EXAMPLE
Some solutions for n=3:
..1..0..0..0..0....0..0..1..0..0....0..0..0..0..0....0..0..1..1..1
..0..0..0..0..1....1..0..0..1..1....0..0..0..1..0....0..0..1..0..0
..1..1..0..0..0....0..0..0..0..0....0..0..0..0..1....0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2012
STATUS
approved