OFFSET
1,1
COMMENTS
Column 6 of A316693.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +5*a(n-2) +33*a(n-3) -9*a(n-4) -53*a(n-5) -229*a(n-6) +42*a(n-7) +42*a(n-8) +386*a(n-9) -47*a(n-10) -52*a(n-11) -288*a(n-12) +62*a(n-13) +216*a(n-15) +84*a(n-16) for n>21
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..1. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..0..0..0..0
..0..0..0..0..1..0. .0..0..0..0..0..0. .0..0..0..1..1..0. .0..0..1..0..1..0
..0..0..0..0..0..0. .0..0..0..1..0..0. .0..0..0..0..0..0. .0..1..0..0..0..0
..0..0..0..0..1..0. .0..0..0..0..1..0. .0..1..0..0..0..0. .0..0..0..0..0..0
..0..0..0..0..0..0. .0..0..0..0..0..1. .0..0..0..0..0..0. .0..0..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 10 2018
STATUS
approved