OFFSET
1,1
COMMENTS
Row 3 of A303525.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +3*a(n-2) +a(n-3) +30*a(n-4) -53*a(n-5) -102*a(n-6) +11*a(n-7) -227*a(n-8) +351*a(n-9) +784*a(n-10) -242*a(n-11) +351*a(n-12) -361*a(n-13) -1069*a(n-14) +577*a(n-15) +8*a(n-16) +28*a(n-17) +22*a(n-18) -11*a(n-19) -a(n-20) for n>21
EXAMPLE
Some solutions for n=5
..0..0..0..1..0. .0..1..0..0..0. .0..0..1..0..1. .0..1..1..0..1
..0..1..1..1..0. .0..1..1..1..0. .1..1..1..0..1. .1..0..1..0..1
..0..1..0..1..0. .0..0..0..1..0. .1..0..0..0..1. .1..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 25 2018
STATUS
approved