OFFSET
1,1
COMMENTS
Column 4 of A297073.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 15*a(n-1) -19*a(n-2) +9*a(n-3) -314*a(n-4) -2060*a(n-5) +2472*a(n-6) +13839*a(n-7) +10226*a(n-8) -11979*a(n-9) -23610*a(n-10) -6595*a(n-11) +10275*a(n-12) +14004*a(n-13) +13286*a(n-14) +2169*a(n-15) -5262*a(n-16) -4234*a(n-17) -6020*a(n-18) -2763*a(n-19) +1073*a(n-20) +538*a(n-21) +112*a(n-22) +96*a(n-23)
EXAMPLE
Some solutions for n=4
..1..0..1..0. .0..1..0..0. .0..1..1..0. .0..1..1..0. .0..0..1..0
..0..0..1..1. .1..1..1..1. .1..0..1..1. .1..0..0..1. .1..1..1..1
..0..0..0..0. .1..1..0..1. .1..1..0..0. .0..1..1..1. .0..1..1..1
..0..1..0..1. .1..0..1..1. .0..1..1..0. .1..1..1..1. .0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 24 2017
STATUS
approved