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A125137 a(n) = p^p + 1, where p = prime(n). 3
5, 28, 3126, 823544, 285311670612, 302875106592254, 827240261886336764178, 1978419655660313589123980, 20880467999847912034355032910568, 2567686153161211134561828214731016126483470, 17069174130723235958610643029059314756044734432, 10555134955777783414078330085995832946127396083370199442518 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..77

FORMULA

a(n) = A051674(n)+1. - R. J. Mathar, Apr 23 2007

MATHEMATICA

Table[Prime[n]^Prime[n] + 1, {n , 20}] (* Vincenzo Librandi, Mar 27 2014 *)

PROG

(MAGMA) [p^p+1: p in PrimesUpTo(40)]; // Vincenzo Librandi, Mar 27 2014

CROSSREFS

See A125136 for factorizations. Cf. A088730, A125135.

Cf. A104131, A114846.

Sequence in context: A024068 A249784 A057642 * A132550 A154587 A083020

Adjacent sequences:  A125134 A125135 A125136 * A125138 A125139 A125140

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 21 2007

STATUS

approved

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Last modified November 16 02:33 EST 2018. Contains 317252 sequences. (Running on oeis4.)