OFFSET
1,1
COMMENTS
Column 4 of A213118
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +a(n-3) +a(n-6) +a(n-7) +7*a(n-8) +a(n-9) -6*a(n-11) -3*a(n-12) -a(n-13) -5*a(n-14) -a(n-15) -21*a(n-16) -13*a(n-17) -5*a(n-18) +14*a(n-19) +9*a(n-20) -a(n-21) +10*a(n-22) +35*a(n-24) +22*a(n-25) +5*a(n-26) -20*a(n-27) -9*a(n-28) -a(n-29) -10*a(n-30) -a(n-31) -35*a(n-32) -13*a(n-33) +15*a(n-35) +3*a(n-36) +5*a(n-38) +a(n-39) +21*a(n-40) +a(n-41) -6*a(n-43) -a(n-46) -7*a(n-48) +a(n-49) +a(n-51) +a(n-56)
EXAMPLE
Some solutions for n=3
..1....0....1....0....1....1....1....1....0....1....1....1....0....0....0....0
..0....0....0....1....1....0....1....1....1....0....1....0....0....1....0....0
..0....1....0....0....0....1....1....0....0....0....0....0....1....1....0....1
..1....0....0....0....1....0....0....1....0....0....0....0....0....0....0....0
..0....0....0....0....0....0....0....0....1....1....0....0....0....1....0....1
..0....1....1....0....0....0....0....0....1....0....0....0....0....0....0....1
..0....0....0....0....0....1....0....0....0....0....1....0....1....0....1....0
..0....0....1....0....0....0....0....0....0....1....0....0....0....0....1....0
..1....0....0....0....1....0....0....1....0....0....0....1....0....0....0....0
..1....1....1....0....0....1....1....1....1....0....1....0....1....0....0....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 05 2012
STATUS
approved