OFFSET
1,1
COMMENTS
Column 5 of A218084
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..72
FORMULA
Empirical: a(n) = 5*a(n-1) +19*a(n-2) -37*a(n-3) -231*a(n-4) +48*a(n-5) +1233*a(n-6) +765*a(n-7) -3665*a(n-8) -3352*a(n-9) +5681*a(n-10) +6688*a(n-11) -7953*a(n-12) -1406*a(n-13) +2852*a(n-14) +584*a(n-15) -3967*a(n-16) +3715*a(n-17) -278*a(n-18) -660*a(n-19) -621*a(n-20) +458*a(n-21) +99*a(n-22) -4*a(n-23) for n>25
EXAMPLE
Some solutions for n=3
..0..0..1..1..1....1..1..1..1..1....1..1..0..0..0....0..0..0..0..0
..0..0..0..1..1....1..0..0..1..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..1..1....0..0..0..0..0....0..0..0..0..1....0..1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 20 2012
STATUS
approved