A164813 - OEIS

A164813

a(n) = smallest number which has in its Spanish name the letter "m" in the n-th position,or -1 if no such number exists.

%I #4 Jun 26 2025 10:33:39

%S 1000,-1,1000000,2000,3000,5000,4000,14000,21000,16000,17000,25000,

%T 24000,35000,34000,44000,54000

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

%C a(1) = Mil, a(3) = un Millon, a(4) = dos Mil.

%K word,sign

%O 1,1

%A _Claudio Meller_, Aug 26 2009