1,2
Same as A094858 but now we can use an alphabet of size 3.
Table of n, a(n) for n=1..6.
Sequence in context: A081419 A108858 A294688 * A267102 A122397 A359679
Adjacent sequences: A094856 A094857 A094858 * A094860 A094861 A094862
nonn,more
Guenter Stertenbrink (Sterten(AT)aol.com), Jun 14 2004
approved