OFFSET
1,2
COMMENTS
Row 3 of A302953.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +15*a(n-2) +37*a(n-3) +80*a(n-4) +68*a(n-5) +26*a(n-6) +5*a(n-7) for n>9
EXAMPLE
Some solutions for n=5
..0..0..0..1..1. .0..0..0..0..0. .0..1..0..0..0. .0..0..1..1..0
..0..0..0..0..0. .0..0..1..1..1. .1..0..1..0..1. .1..1..0..0..1
..1..1..0..1..1. .0..0..0..1..1. .0..1..1..1..0. .1..0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 16 2018
STATUS
approved