OFFSET
1,1
COMMENTS
Column 5 of A261380.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 31*a(n-4) +97*a(n-6) +39*a(n-8) -144*a(n-10) -29*a(n-12) +189*a(n-14) -125*a(n-16) -14*a(n-18) +40*a(n-20) -13*a(n-22) -a(n-24) +a(n-26) for n>29
EXAMPLE
Some solutions for n=4
..1..0..1..0..1..0..0....0..0..0..1..0..1..0....1..0..1..0..1..0..1
..0..1..0..0..0..1..0....1..0..1..0..1..0..1....0..1..0..1..0..1..0
..1..0..1..0..1..0..1....0..1..0..1..0..0..0....1..0..1..0..1..0..1
..0..1..0..1..0..1..0....0..0..1..0..1..0..1....0..1..0..0..0..1..0
..0..0..1..0..1..0..0....0..1..0..1..0..1..0....1..0..1..0..1..0..0
..0..1..0..0..0..1..0....1..0..1..0..1..0..1....0..1..0..1..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 17 2015
STATUS
approved