OFFSET
1,1
COMMENTS
Column 4 of A250468.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +46*a(n-2) -95*a(n-3) -445*a(n-4) +586*a(n-5) +1578*a(n-6) -1665*a(n-7) -2478*a(n-8) +2288*a(n-9) +1812*a(n-10) -1488*a(n-11) -576*a(n-12) +400*a(n-13) +64*a(n-14) -32*a(n-15).
EXAMPLE
Some solutions for n=3
..0..1..0..0..0....0..0..0..0..1....0..0..1..0..1....0..0..0..0..0
..0..0..0..1..0....1..0..0..0..0....0..0..0..0..1....1..0..1..0..1
..1..0..0..0..1....0..0..1..1..1....0..0..0..0..0....0..1..0..0..0
..0..1..1..1..1....1..0..1..1..1....0..1..0..0..1....1..0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2014
STATUS
approved