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A155845 Primes of the form 2^p-p*q where p is prime,q=3. 4
-2, 17, 107, 524231, 8388539, 162259276829213363391578010287807 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 1342 digits. - Harvey P. Dale, Dec 09 2013

LINKS

Table of n, a(n) for n=1..6.

MATHEMATICA

q=3; lst={}; Do[p=Prime[n]; If[PrimeQ[p=2^p-p*q], AppendTo[lst, p]], {n, 5!}]; lst

Select[2^#-3#&/@Prime[Range[900]], PrimeQ] (* Harvey P. Dale, Dec 09 2013 *)

CROSSREFS

Cf. A057664, A155841, A155842, A155843, A155844, A057678

Sequence in context: A204238 A198796 A186104 * A115354 A100274 A213785

Adjacent sequences:  A155842 A155843 A155844 * A155846 A155847 A155848

KEYWORD

sign

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jan 28 2009

STATUS

approved

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Last modified December 12 12:30 EST 2019. Contains 329958 sequences. (Running on oeis4.)