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A095379 Primes of the form 1 + A094125(k) = 1 + 3*2^k + 2*3^k. 1
13, 31, 79, 211, 4759, 40903, 121171, 360439, 1075171, 2326095799, 62774702131, 564909404611, 53177629140127471641559, 1668770336663931954974790774345703 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

FORMULA

a(n) = 1 + A094125(A095378(n)). - Jinyuan Wang, Aug 26 2019

EXAMPLE

Prime 211 is a term because 211 = 1 + 3*2^4 + 2*3^4.

The 17th term has 274 decimal digits.

CROSSREFS

Cf. A094125, A095378.

Sequence in context: A211116 A107288 A335732 * A160772 A271575 A039403

Adjacent sequences:  A095376 A095377 A095378 * A095380 A095381 A095382

KEYWORD

nonn

AUTHOR

Labos Elemer, Jun 07 2004

STATUS

approved

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Last modified August 11 02:59 EDT 2020. Contains 336420 sequences. (Running on oeis4.)