A164808 a(n) = smallest number which has in its Spanish name the letter "e" in the n-th position,or -1 if no such number exists.

-1, 0, 3, 11, 7, 15, 14, 17, 23, 17, 27, 43, 37, 47, 57, 117, 127, 143, 137, 147, 157, 243, 237, 247, 257, 357, 447, 457

Offset

1,3

Comments

a(2)=cEro, a(3)=trEs, a(4)=oncE

Links

Table of n, a(n) for n=1..28.

Crossrefs

Sequence in context: A196171 A288902 A288832 * A378680 A355895 A153285

Adjacent sequences: A164805 A164806 A164807 * A164809 A164810 A164811

Keyword

word,sign

Author

Claudio Meller, Aug 26 2009

Status

approved