OFFSET
1,1
COMMENTS
Column 1 of A224597
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) -3*a(n-2) +4*a(n-3) -5*a(n-4) +6*a(n-5) -6*a(n-6) +6*a(n-7) -4*a(n-8) +3*a(n-9) -2*a(n-11) +6*a(n-12) -8*a(n-13) +11*a(n-14) -12*a(n-15) +13*a(n-16) -13*a(n-17) +11*a(n-18) -10*a(n-19) +6*a(n-20) -5*a(n-21) +a(n-23) -5*a(n-24) +5*a(n-25) -7*a(n-26) +7*a(n-27) -7*a(n-28) +7*a(n-29) -5*a(n-30) +5*a(n-31) -3*a(n-32) +3*a(n-33) -a(n-34) +a(n-35) for n>54
EXAMPLE
Some solutions for n=4
..1..0..0..1..0..0..0..0....1..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....0..1..0..1..0..0..1..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..1..1..0..0..1..1..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..1..1..0..0..1..1..0....0..0..0..0..1..0..0..0....0..1..0..1..0..0..1..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..0....0..1..0..1..0..0..1..0
..1..0..0..0..0..0..1..1....0..0..0..0..1..0..0..0....0..0..1..0..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2013
STATUS
approved