OFFSET
1,2
COMMENTS
Column 4 of A298782.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +5*a(n-2) -8*a(n-3) -21*a(n-4) +8*a(n-5) +16*a(n-6) +19*a(n-7) +5*a(n-8) +10*a(n-9) -12*a(n-10) -43*a(n-11) -12*a(n-12) -3*a(n-13) +26*a(n-14) +11*a(n-15) +7*a(n-16) -3*a(n-17) -13*a(n-18) +7*a(n-19) +2*a(n-20) -3*a(n-21) for n>27.
EXAMPLE
Some solutions for n=5
..0..0..1..1. .0..0..1..1. .0..0..0..0. .0..0..1..1. .0..0..0..0
..0..0..1..1. .0..0..1..1. .0..0..0..0. .0..0..1..1. .0..0..0..0
..1..1..0..0. .0..0..1..0. .0..0..0..0. .1..0..0..1. .0..0..0..0
..1..1..0..0. .0..0..1..1. .0..0..0..0. .0..0..1..1. .1..1..1..1
..1..1..0..0. .0..0..1..1. .0..0..0..0. .0..0..1..1. .1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2018
STATUS
approved