A117802 Numbers with an "a" in Dutch.

8, 12, 18, 28, 38, 48, 58, 68, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 98, 108, 112, 118, 128, 138, 148, 158, 168, 178, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 198, 208, 212, 218, 228, 238, 248, 258, 268, 278, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 298

Offset

1,1

Comments

The sequence contains also 1000000000 (miljard), 1000000000000000000 (=10^18)(biljard),10^27 (triljard), etc...

Links

Table of n, a(n) for n=1..60.

Example

acht, twaalf, achttien, ..., achtendertig, achtenveertig, achtenvijftig, ..., tachtig, eenentachtig, ..., honderd twaalf, ...

Mathematica

Select[Range[270], MemberQ[Characters[IntegerName[#, {"Dutch"}]], "a"] &] (* Stefano Spezia, May 22 2026 *)

Crossrefs

Cf. A017365.

Sequence in context: A364776 A379033 A033477 * A105936 A168670 A291758

Adjacent sequences: A117799 A117800 A117801 * A117803 A117804 A117805

Keyword

nonn,word

Author

Luc Stevens (lms022(AT)yahoo.com), Apr 29 2006

Extensions

Added 18, 80, 81, 82, ... 112, 180, 181, ... - R. J. Mathar, May 22 2026

a(49)-a(60) from Stefano Spezia, May 22 2026

Status

approved