OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 17*a(n-1) -101*a(n-2) +110*a(n-3) +1466*a(n-4) -6607*a(n-5) +2715*a(n-6) +50990*a(n-7) -125338*a(n-8) -69069*a(n-9) +724777*a(n-10) -770521*a(n-11) -1528585*a(n-12) +4147071*a(n-13) -616996*a(n-14) -8587972*a(n-15) +9209705*a(n-16) +6258473*a(n-17) -18241543*a(n-18) +5925196*a(n-19) +15364973*a(n-20) -15498239*a(n-21) -2690737*a(n-22) +12025570*a(n-23) -4880027*a(n-24) -3407185*a(n-25) +3581843*a(n-26) -420145*a(n-27) -810850*a(n-28) +400975*a(n-29) -4790*a(n-30) -48700*a(n-31) +15025*a(n-32) -1500*a(n-33) for n > 35.
EXAMPLE
Some solutions for n=3:
..1..0..0..0..1....1..0..0..0..0....0..0..2..1..1....0..0..1..1..2
..0..1..1..1..1....0..1..1..1..2....0..2..1..2..1....0..0..1..1..2
..1..0..1..2..2....2..2..2..2..2....2..0..2..1..2....0..1..2..2..2
..0..2..2..1..2....2..2..2..2..2....0..2..0..2..1....2..1..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2014
STATUS
approved