OFFSET
1,1
COMMENTS
Column 3 of A260370
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-3) +11*a(n-4) -3*a(n-6) -46*a(n-7) -50*a(n-8) -10*a(n-9) +29*a(n-10) +148*a(n-11) +136*a(n-12) +12*a(n-13) -113*a(n-14) -228*a(n-15) -260*a(n-16) +10*a(n-17) +203*a(n-18) +200*a(n-19) +295*a(n-20) +8*a(n-21) -104*a(n-22) -80*a(n-23) -161*a(n-24) -16*a(n-25) +12*a(n-26) +4*a(n-27) +16*a(n-28) for n>30
EXAMPLE
Some solutions for n=4
..1..0..0..1..0....1..0..0..0..1....0..0..0..1..0....1..1..0..0..0
..1..0..0..1..0....1..0..0..1..1....1..0..0..0..0....0..1..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..0..0....0..0..0..1..1....0..0..0..0..0
..0..1..0..0..1....1..0..0..1..0....1..0..0..0..0....0..0..1..0..0
..1..1..0..0..0....0..0..0..1..0....0..0..0..0..0....0..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 23 2015
STATUS
approved