OFFSET
1,1
COMMENTS
This uses the short scale for the names of large numbers. - Ken Takusagawa, Oct 11 2016
In British English, a(1) is 101. - Paul Duckett, Apr 23 2022
LINKS
EXAMPLE
C first occurs in "octillion".
MATHEMATICA
alphabet={"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"};
candidates=AppendTo[AppendTo[Range[19], Table[10*i, {i, 2, 10}]], Table[10^i, {i, 3, 63, 3}]]//Flatten//Quiet;
f[10]=f[11]=f[26]=-1; f[n_]:=Module[{k=1},
While[StringContainsQ[ToString[IntegerName[candidates[[k]], "Words"]], alphabet[[n]]]!=True, k++]; candidates[[k]]];
f/@Range[26] (* Ivan N. Ianakiev, Apr 10 2018 *)
CROSSREFS
KEYWORD
fini,sign,full,word
AUTHOR
Anonymous submission.
EXTENSIONS
a(5) corrected by Donovan Johnson, Dec 08 2004
Edited: Definition extended, "octillian" corrected, link and cross-reference provided; and sequence completed by Rick L. Shepherd, Aug 29 2009
Definition clarified by Paul Duckett, Apr 23 2022
STATUS
approved