OFFSET
1,1
COMMENTS
Column 4 of A299661.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 13*a(n-1) +12*a(n-2) -39*a(n-3) -468*a(n-4) -404*a(n-5) +675*a(n-6) +2723*a(n-7) +3026*a(n-8) +5750*a(n-9) +19747*a(n-10) +17630*a(n-11) -28280*a(n-12) -73625*a(n-13) -44638*a(n-14) +24870*a(n-15) +47548*a(n-16) +29679*a(n-17) +4247*a(n-18) -10854*a(n-19) -4557*a(n-20) -2325*a(n-21) -2645*a(n-22) -403*a(n-23) +60*a(n-24)
EXAMPLE
Some solutions for n=5
..0..0..0..1. .0..0..1..0. .0..0..0..1. .0..0..1..0. .0..0..0..0
..0..0..0..1. .0..1..1..1. .1..1..0..0. .0..1..1..1. .1..0..1..1
..0..0..1..1. .1..1..0..1. .1..1..0..1. .1..0..1..0. .0..1..0..1
..1..0..1..0. .0..0..0..0. .1..1..0..0. .1..0..1..1. .0..0..1..1
..1..1..0..1. .0..1..0..1. .0..1..1..1. .1..1..0..0. .0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 15 2018
STATUS
approved