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 A179056 Numbers k such that prime(1)^1 + prime(2)^2 + ... + prime(k)^k is prime. 0
 1, 2, 8, 6402 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The number corresponding to k=6402 is a probable prime. There is no further term up to 9435. There is no further term up to 12600. - Michael S. Branicky, Mar 22 2023 LINKS EXAMPLE prime(1)^1 + prime(2)^2 + ... + prime(8)^8 = 17398892111 is prime, so 8 is in the sequence. MATHEMATICA Select[Range[1, 100], PrimeQ[Sum[Prime[i]^i, {i, 1, #}]] &] (* Julien Kluge, Dec 03 2016 *) CROSSREFS Cf. A087480. Sequence in context: A324567 A135238 A133376 * A160814 A038582 A309860 Adjacent sequences: A179053 A179054 A179055 * A179057 A179058 A179059 KEYWORD hard,more,nonn,changed AUTHOR Farideh Firoozbakht, Jun 27 2010 STATUS approved

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Last modified March 24 18:08 EDT 2023. Contains 361510 sequences. (Running on oeis4.)