OFFSET
1,1
COMMENTS
Column 3 of A297637.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) -11*a(n-2) +33*a(n-3) -184*a(n-4) +159*a(n-5) -265*a(n-6) +1190*a(n-7) -508*a(n-8) +20*a(n-9) -1256*a(n-10) +664*a(n-11) +1408*a(n-12) -2464*a(n-13) +1024*a(n-14) -768*a(n-15)
EXAMPLE
Some solutions for n=7
..0..0..0. .0..0..0. .0..0..0. .0..1..0. .0..0..1. .0..0..0. .1..0..0
..0..0..0. .1..0..1. .1..0..1. .1..1..1. .1..0..0. .0..0..1. .1..0..0
..0..0..0. .1..0..0. .0..0..0. .0..1..0. .0..0..0. .1..0..1. .1..0..0
..0..1..0. .0..0..0. .0..0..1. .1..0..0. .0..0..1. .1..0..1. .0..0..0
..0..1..0. .0..1..1. .0..0..0. .1..1..0. .0..0..0. .0..0..0. .0..1..0
..0..1..0. .0..1..1. .0..0..1. .1..1..0. .0..0..1. .1..1..1. .0..0..0
..0..1..0. .0..0..0. .1..0..1. .0..1..1. .0..0..1. .0..1..1. .0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2018
STATUS
approved