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A188764 Primes p such that all prime factors of p-2 have exponent 3. 0
29, 127, 24391, 274627, 328511, 357913, 571789, 1157627, 1442899, 1860869, 2146691, 2924209, 5177719, 9129331, 9938377, 10503461, 12326393, 15438251, 18191449, 24642173, 26730901, 28372627, 30080233, 39651823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

30080233-2=311^3, 39651823-2=11^3*31^3,..

MATHEMATICA

Select[Table[Prime[n], {n, 3000000}], Length[Union[Last/@FactorInteger[#-2]]]==1&&Union[Last/@FactorInteger[#-2]]=={3}&]

Select[Prime[Range[25*10^5]], Union[FactorInteger[#-2][[All, 2]]]=={3}&] (* Harvey P. Dale, Nov 22 2018 *)

CROSSREFS

Cf. A089195, A188717.

Sequence in context: A142438 A342823 A118097 * A048636 A044361 A044742

Adjacent sequences: A188761 A188762 A188763 * A188765 A188766 A188767

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Apr 09 2011

STATUS

approved

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Last modified December 3 13:34 EST 2022. Contains 358524 sequences. (Running on oeis4.)