A336822 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A336822

Integers with an even number of letters when written in Spanish.

3, 4, 6, 8, 10, 11, 12, 15, 17, 19, 20, 23, 24, 26, 28, 33, 34, 36, 38, 40, 41, 42, 45, 47, 49, 53, 54, 56, 63, 64, 66, 68, 73, 74, 76, 78, 83, 84, 86, 88, 93, 94, 96, 98, 100, 103, 104, 106, 108, 110, 111, 112, 115, 117, 119, 120, 123, 124, 126, 128, 133, 134, 136, 138, 140, 141, 142, 145, 147, 149

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

REFERENCES

Rodolfo Kurchan, Problem 15, Diversiones con Números y Figuras, (2000).

LINKS

Table of n, a(n) for n=1..70.

EXAMPLE

a(4) = 8 because 8 in spanish is written "ocho" and has 4 letters.

MATHEMATICA

Select[Range@ 150, EvenQ@ StringLength@ StringDelete[IntegerName[#, {"Spanish"}], " "] &] (* Michael De Vlieger, Aug 21 2020 *)

CROSSREFS