The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A001619 Number of letters in English name for n increases at these numbers. 2

%I #10 Feb 01 2022 23:34:09

%S 1,3,11,13,17,21,23,73,101,103,111,113,117,121,123,173,323,373,1103,

%T 1111,1113,1117,1121,1123,1173,1323,1373,3323,3373,11373,13323,13373,

%U 17373,21373,23323,23373,73373,101173,101323,101373,103323,103373

%N Number of letters in English name for n increases at these numbers.

%C "and" is used in number names and "-" is counted as a letter (e.g., "twenty-one" has more letters than "seventeen").

%H Sean A. Irvine, <a href="/A001619/a001619.txt">Number names for terms in the sequence</a>

%K word,nonn

%O 1,2

%A _N. J. A. Sloane_

%E Missing terms added by _Sean A. Irvine_, Oct 04 2012

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 21 15:47 EDT 2024. Contains 372738 sequences. (Running on oeis4.)