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!)
A094963 Numbers n such that 2^n-3n is a prime. 0
5, 7, 19, 23, 87, 107, 255, 1539, 2387, 4457, 5623 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

MATHEMATICA

Do[ If[ PrimeQ[2^n - 3n], Print[n]], {n, 1, 15000, 2}]

CROSSREFS

Cf. A082101.

Sequence in context: A268608 A058079 A076787 * A255490 A045446 A106074

Adjacent sequences:  A094960 A094961 A094962 * A094964 A094965 A094966

KEYWORD

nonn,more

AUTHOR

Robert G. Wilson v, May 26 2004

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 January 24 13:24 EST 2020. Contains 331193 sequences. (Running on oeis4.)