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A107606 Perfect powers which have the form prime(n) + n for some n. 5
8, 16, 27, 32, 49, 529, 676, 1000, 1225, 1521, 1681, 1764, 2744, 3249, 4096, 5929, 9604, 10404, 10609, 11664, 12321, 19600, 24336, 25921, 26569, 27889, 33856, 34225, 34596, 46656, 51984, 68921, 71289, 72361, 91204, 100489, 101124, 104976 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Corresponding n's are in A107605.

LINKS

Zak Seidov, Table of n, a(n) for n = 1..1000

FORMULA

A107606(n) = prime[A107605(n)] + A107605(n)

MATHEMATICA

f[n_] := Prime[n] + n; Select[f /@ Range[10^4], ! GCD @@ Last /@ FactorInteger[ # ] == 1 &] (* Ray Chandler, May 21 2005 *)

CROSSREFS

Cf. A001597 (perfect powers), A107605 (associated n), A107607, A107608.

Sequence in context: A329134 A090081 A059172 * A245713 A320966 A036966

Adjacent sequences:  A107603 A107604 A107605 * A107607 A107608 A107609

KEYWORD

nonn

AUTHOR

Zak Seidov, May 17 2005

EXTENSIONS

Extended by Ray Chandler and Robert G. Wilson v, May 21 2005

STATUS

approved

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Last modified September 26 16:29 EDT 2020. Contains 337374 sequences. (Running on oeis4.)