OFFSET
1,2
COMMENTS
Row 4 of A219063
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..133
FORMULA
Empirical: a(n) = 14*a(n-1) +24*a(n-2) +111*a(n-3) +180*a(n-4) +1116*a(n-5) +1350*a(n-6) -1296*a(n-7) -5456*a(n-8) -6114*a(n-9) +828*a(n-10) +208*a(n-11) -221*a(n-12) +1682*a(n-13) +2200*a(n-14) -45*a(n-15) -112*a(n-16) +52*a(n-17) -72*a(n-18) -208*a(n-19) for n>20
EXAMPLE
Some solutions for n=3
..0..1..0....1..0..0....1..0..1....0..0..1....0..0..1....0..0..1....1..1..0
..1..0..1....0..1..0....0..1..1....1..0..0....1..1..1....0..0..0....1..1..1
..0..1..0....1..0..0....1..0..1....1..1..1....0..1..0....0..1..0....1..0..0
..1..1..1....0..0..1....1..0..0....0..1..0....1..0..0....0..0..1....1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 11 2012
STATUS
approved