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A022603 Indices of primes of form 3^p - 2. 0
4, 22, 53, 129, 2227, 1357200840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

Exploring Primeness Project

EXAMPLE

The second prime that is 2 less than a power of 3 is 79, which is p(22), so 22 is second on the list.

CROSSREFS

Cf. A014232.

Sequence in context: A290709 A163433 A187930 * A050773 A122241 A076525

Adjacent sequences:  A022600 A022601 A022602 * A022604 A022605 A022606

KEYWORD

nonn

AUTHOR

Neil Fernandez

STATUS

approved

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Last modified October 22 22:34 EDT 2019. Contains 328335 sequences. (Running on oeis4.)