A161389 Spelling n in Spanish requires a new letter of the alphabet.

0, 1, 2, 3, 4, 5, 8, 9, 10, 15, 31, 1000, 1000000000000, 1000000000000000000000000000000000000, 1000000000000000000000000000000000000000000

Offset

1,3

Comments

CERO, UNo, DoS, Tres, cuAtro, cINco, ocHo, nueVe, dieZ, Quince, treinta Y uno, MiL, un Billon (10^12 in Spanish), un seXtillon (10^36), un sePtillon (10^42),...

(New letter in uppercase).Letters "f","g","j","k","ss +-" and "w" are never used.

References

http://mathforum.org/kb/thread.jspa?forumID=265&threadID=606989&messageID=1773344#1773344 [From Claudio Meller, Oct 30 2009]

Links

Table of n, a(n) for n=1..15.

Crossrefs

A050933

Sequence in context: A054220 A337801 A116214 * A266118 A287802 A371284

Adjacent sequences: A161386 A161387 A161388 * A161390 A161391 A161392

Keyword

fini,nonn,word

Author

Claudio Meller, Jun 08 2009

Extensions

Corrected and edited by Omar E. Pol, Jul 06 2009

Status

approved