OFFSET
0,3
LINKS
Hiroaki Yamanouchi, Table of n, a(n) for n = 0..26
EXAMPLE
For a(3) all words of length 3 over {0,1,2} except: 001, 002, 112.
CROSSREFS
KEYWORD
nonn
AUTHOR
Chad Brewbaker, Mar 14 2014
EXTENSIONS
a(8)-a(11) from Giovanni Resta, Mar 14 2014
a(12)-a(18) from Alois P. Heinz, Mar 15 2014
a(19)-a(20) from Hiroaki Yamanouchi, Oct 02 2014
STATUS
approved