OFFSET
1,2
COMMENTS
The sequence of words is: uno, tres, siete, doce, dieciseis, veinticinco, treinta y seis, ...
EXAMPLE
a(5)= number of letters of uno-tres-siete-doce = 16.
CROSSREFS
KEYWORD
nonn,word
AUTHOR
Claudio Meller, Jul 09 2011
STATUS
approved