login
a(n) = smallest number which has in its Spanish name the letter "i" in the n-th position,or -1 if no such number exists,-2 for infinite.
0

%I #2 Mar 31 2012 14:00:43

%S -2,5,6,30,16,21,17,16,26,35,36,46,56,116,126,135,136,146,156,235,236,

%T 246,256,356,446,456

%N a(n) = smallest number which has in its Spanish name the letter "i" in the n-th position,or -1 if no such number exists,-2 for infinite.

%C a(1)=Infinito, a(2)=cInco, a(3)=seIs, a(4)= treInta

%K word,sign

%O 1,1

%A _Claudio Meller_, Aug 26 2009