OFFSET
1,1
COMMENTS
Column 3 of A218765
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..63
FORMULA
Empirical: a(n) = 4*a(n-1) +a(n-2) +7*a(n-3) +11*a(n-4) +2*a(n-5) -28*a(n-6) -11*a(n-7) -4*a(n-8) -13*a(n-9) +12*a(n-10) -137*a(n-11) -48*a(n-12) +129*a(n-13) +31*a(n-14) -51*a(n-15) -32*a(n-16) +6*a(n-17) +10*a(n-18) +2*a(n-19)
EXAMPLE
Some solutions for n=3
..1..0..1....1..0..1....0..0..0....0..1..0....0..0..1....1..0..0....0..0..0
..0..0..0....0..0..0....1..0..0....0..0..0....0..1..1....1..0..0....0..1..0
..0..1..0....1..0..0....1..1..1....0..0..1....1..1..1....1..1..0....1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 05 2012
STATUS
approved