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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A140088 Number of primes p such that n!-p is prime. 1
0, 0, 0, 1, 6, 24, 78, 368, 1902, 11062, 77426, 692414, 6261624, 68889928, 764874856, 9274470290 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

Equals 2*A062311(n) except when n=3.

LINKS

Table of n, a(n) for n=0..15.

CROSSREFS

Cf. A062311.

Sequence in context: A162583 A259662 A058809 * A011855 A173031 A004404

Adjacent sequences:  A140085 A140086 A140087 * A140089 A140090 A140091

KEYWORD

nonn

AUTHOR

Leroy Quet and others, May 02 2008

EXTENSIONS

a(14), a(15) from Hans Havermann, Dec 21 2008

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified June 25 19:53 EDT 2017. Contains 288729 sequences.