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A089530 A023204 indexed by A000040. 6
1, 3, 4, 6, 7, 8, 10, 14, 15, 16, 19, 21, 24, 25, 30, 31, 33, 34, 37, 39, 40, 44, 45, 46, 48, 49, 50, 57, 59, 61, 63, 68, 70, 71, 75, 76, 78, 80, 85, 90, 91, 93, 96, 97, 99, 101, 102, 103, 109, 111, 112, 113, 117, 118, 120, 131, 132, 137, 139, 140, 144, 147, 149, 154 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

a(n)=k such that A023204(n)=A000040(k).

MATHEMATICA

Select[Range[160], PrimeQ[2 Prime[#] + 3] &] (* Vincenzo Librandi, May 02 2016 *)

PROG

(MAGMA) [n: n in [1..250] | IsPrime(2*NthPrime(n)+3)]; // Vincenzo Librandi, May 02 2016

CROSSREFS

Cf. A023204, A089531, A089532.

Sequence in context: A283482 A283471 A127260 * A201820 A191775 A047515

Adjacent sequences:  A089527 A089528 A089529 * A089531 A089532 A089533

KEYWORD

nonn,easy

AUTHOR

Ray Chandler, Nov 07 2003

STATUS

approved

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Last modified October 18 00:18 EDT 2019. Contains 328135 sequences. (Running on oeis4.)