login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A181575 Prime numbers which are impossible numbers of trailing zeros in the decimal representation of the factorial of any prime number. 1
5, 11, 17, 23, 29, 59, 61, 67, 73, 79, 83, 101, 127, 131, 167, 173, 179, 193, 199, 223, 229, 241, 281, 283, 307, 311, 317, 331, 337, 349, 367, 373, 379, 397, 409, 419, 431, 439, 449, 457, 461, 467, 479, 487, 491, 503, 509, 523, 541, 547, 563, 577, 587, 599 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Prime entries in A181573.

LINKS

Table of n, a(n) for n=1..54.

FORMULA

A181573 INTERSECT A000040.

MATHEMATICA

f[n_] := IntegerExponent[ Prime@ n!, 10]; Select[ Complement[ Range[0, 600], Array[f, 360]], PrimeQ] (* Robert G. Wilson v, Nov 05 2010 *)

CROSSREFS

Cf. A181573.

Sequence in context: A144920 A051615 A063909 * A194384 A287305 A189938

Adjacent sequences:  A181572 A181573 A181574 * A181576 A181577 A181578

KEYWORD

nonn,base

AUTHOR

Lekraj Beedassy, Nov 01 2010

EXTENSIONS

More terms from Robert G. Wilson v, Nov 05 2010

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 February 26 01:41 EST 2020. Contains 332270 sequences. (Running on oeis4.)