%I #5 Mar 30 2012 18:40:14
%S 1,3,7,12,16,25,36,48,61,72,83,95,108,118,133,151,170,183,201,214,231,
%T 252,275,298,320,337,361,383,406,423,446,472,496,521,540,558,582,603,
%U 618,638,661,683,706,721,741,764,789,813,829,851,875,899,923,944,970
%N Spanish version of A060403 - Each term is the previous term plus the number of letters in the previous number, as conventionally spelled out in Spanish.
%C The sequence of words is: uno, tres, siete, doce, dieciseis, veinticinco, treinta y seis, ...
%e a(5)= number of letters of uno-tres-siete-doce = 16.
%K nonn,word
%O 1,2
%A _Claudio Meller_, Jul 09 2011