OFFSET
1,1
COMMENTS
Column 2 of A241397
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-2) +10*a(n-3) +3*a(n-4) -12*a(n-5) -46*a(n-6) -36*a(n-7) +12*a(n-8) +107*a(n-9) +87*a(n-10) +2*a(n-11) -145*a(n-12) -138*a(n-13) -48*a(n-14) +147*a(n-15) +185*a(n-16) +89*a(n-17) -94*a(n-18) -210*a(n-19) -111*a(n-20) +40*a(n-21) +176*a(n-22) +85*a(n-23) +30*a(n-24) -77*a(n-25) -47*a(n-26) -57*a(n-27) +14*a(n-29) +21*a(n-30) +14*a(n-31) -3*a(n-32) +2*a(n-33) -5*a(n-34) +a(n-35) +2*a(n-36) +a(n-37) -a(n-38)
EXAMPLE
Some solutions for n=4
..3..2....2..3....3..2....2..3....2..3....2..3....3..2....2..3....3..2....2..3
..1..0....2..3....1..2....1..3....1..3....1..3....1..0....1..3....1..0....1..3
..2..0....3..0....2..0....2..0....1..0....3..2....3..0....3..2....3..0....3..0
..2..0....2..0....2..3....3..0....2..0....1..2....3..2....2..0....3..0....2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 20 2014
STATUS
approved