login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A163648 Primes p with a prime number of syllables in their name in American English. 4
7, 11, 13, 17, 19, 23, 29, 31, 41, 43, 53, 59, 61, 83, 89, 107, 113, 127, 137, 157, 167, 173, 179, 197, 227, 257, 271, 307, 313, 337, 347, 367, 373, 379, 397, 419, 457, 467, 479, 487, 547, 557, 571, 587, 607, 613, 619, 647, 673, 701, 709, 733, 739, 743, 751 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The word "and" is excluded, 101 is "one hundred one" rather than "one hundred and one."

See A231073 and A231075 for the analogs counting words resp. letters. - M. F. Hasler, Nov 03 2013

LINKS

Table of n, a(n) for n=1..55.

Index to OEIS: sequences related to English words for n

FORMULA

{p in A000040 such that A075774(p) is in A000040}.

EXAMPLE

a(1) = 7, which has a prime number, 2, of syllables sev-en. a(2) = 11, which has a prime number, 3, of syllables e-lev-en.

PROG

(PARI) forprime(p=1, 900, isprime(A075774(p))&&print1(p", ")) \\ - M. F. Hasler, Nov 03 2013

(PARI) is(p)=isprime(A075774(p))&&isprime(p) \\ - M. F. Hasler, Nov 03 2013

CROSSREFS

Cf. A000040, A075774, A164043.

Sequence in context: A078873 A020603 A283532 * A135776 A067831 A086998

Adjacent sequences:  A163645 A163646 A163647 * A163649 A163650 A163651

KEYWORD

word,easy,nonn

AUTHOR

Jonathan Vos Post, Aug 02 2009

EXTENSIONS

Extended and edited by Charles R Greathouse IV, Nov 02 2009

Values double-checked by M. F. Hasler, Nov 03 2013

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 19 14:49 EDT 2019. Contains 328223 sequences. (Running on oeis4.)