OFFSET
1,1
COMMENTS
Column 3 of A220226
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +11*a(n-2) +20*a(n-3) +10*a(n-4) -22*a(n-5) -73*a(n-6) -130*a(n-7) -255*a(n-8) -324*a(n-9) +76*a(n-10) +462*a(n-11) +1018*a(n-12) +1198*a(n-13) +626*a(n-14) -544*a(n-15) -1353*a(n-16) -1612*a(n-17) -1219*a(n-18) -68*a(n-19) +153*a(n-20) +934*a(n-21) +548*a(n-22) -166*a(n-23) -146*a(n-24) -642*a(n-25) -164*a(n-26) +140*a(n-27) +76*a(n-28) +120*a(n-29) -8*a(n-30) -32*a(n-31) for n>32
EXAMPLE
Some solutions for n=3
..0..1..1....1..0..1....1..1..0....1..1..1....1..1..0....1..0..1....0..0..0
..1..1..1....1..1..1....1..1..1....0..0..0....0..1..1....1..1..1....0..0..1
..1..1..1....1..1..1....0..1..0....1..0..0....1..1..1....0..1..1....1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 08 2012
STATUS
approved