OFFSET
1,1
COMMENTS
Column 2 of A240153
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-2) +14*a(n-3) +5*a(n-4) -28*a(n-5) -89*a(n-6) -50*a(n-7) +93*a(n-8) +303*a(n-9) +214*a(n-10) -113*a(n-11) -561*a(n-12) -468*a(n-13) -47*a(n-14) +584*a(n-15) +499*a(n-16) +142*a(n-17) -359*a(n-18) -96*a(n-19) -23*a(n-20) +128*a(n-21) -102*a(n-22) -99*a(n-23) -119*a(n-24) +32*a(n-25) +82*a(n-26) +113*a(n-27) +50*a(n-28) -7*a(n-29) -42*a(n-30) -20*a(n-31) +a(n-32) +4*a(n-33) +a(n-34) for n>36
EXAMPLE
Some solutions for n=4
..3..3....3..3....3..2....3..2....2..2....3..3....3..3....3..3....2..2....2..2
..2..2....2..1....3..2....3..1....0..2....2..1....2..1....2..1....0..2....0..2
..3..1....0..2....0..3....2..2....0..3....3..2....3..2....3..2....0..3....0..2
..2..1....3..2....0..3....3..1....2..2....0..2....3..2....3..1....0..3....0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 02 2014
STATUS
approved