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A031337 a(n) = prime(4*n). 1
7, 19, 37, 53, 71, 89, 107, 131, 151, 173, 193, 223, 239, 263, 281, 311, 337, 359, 383, 409, 433, 457, 479, 503, 541, 569, 593, 613, 641, 659, 683, 719, 743, 769, 809, 827, 857, 881, 911, 941, 971, 997, 1021, 1049, 1069, 1097, 1123, 1163, 1193 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jens Kruse Andersen, Table of n, a(n) for n = 1..10000

MAPLE

ithprime(4*n)

MATHEMATICA

Prime[4 Range[50]] (* Alonso del Arte, Feb 20 2013 *)

PROG

(Magma) [NthPrime(4*n): n in [1..1000]]; // Vincenzo Librandi, Apr 11 2011

(PARI) a(n)=prime(4*n) \\ Edward Jiang, Sep 08 2014

CROSSREFS

Cf. A031215.

Sequence in context: A215421 A192594 A352243 * A241984 A301717 A152540

Adjacent sequences: A031334 A031335 A031336 * A031338 A031339 A031340

KEYWORD

nonn,easy

AUTHOR

Jeff Burch

STATUS

approved

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Last modified January 31 05:18 EST 2023. Contains 359947 sequences. (Running on oeis4.)