1,3

The sequence is finite as long as there are stable principles in the procedure for naming numbers in English.

Table of n, a(n) for n=1..19.

Wikipedia, Names of large numbers

Robert G. Wilson v, English names for the numbers from 0 to 11159 without spaces or hyphens

Index entries for sequences related to names of numbers

A159451(a(n)) = 0.

Cf. A159451.

Sequence in context: A330513 A246092 A017906 * A044963 A044825 A048311

Adjacent sequences: A159449 A159450 A159451 * A159453 A159454 A159455

fini,full,nonn,word

Reinhard Zumkeller, Apr 12 2009

approved