%I #2 Mar 31 2012 14:00:43
%S -1,14,4,-1,1014,1004,30,40,24,1030,34,44,54,140,124,404,134,144,154,
%T 324,234,244,254,354,444,454,1354,1444,1454,2354,2444,2454,3454,4444,
%U 4454
%N a(n) = smallest number which has in its Spanish name the letter "a" in the n-th position, or -1 if no such number exists.
%C a(2)=cAtorce, a(3)=cuAtro, a(5)= mil cAtorce
%K word,sign
%O 1,2
%A _Claudio Meller_, Aug 26 2009