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A031336
a(n) = prime(3*n).
16
5, 13, 23, 37, 47, 61, 73, 89, 103, 113, 137, 151, 167, 181, 197, 223, 233, 251, 269, 281, 307, 317, 347, 359, 379, 397, 419, 433, 449, 463, 487, 503, 523, 557, 571, 593, 607, 619, 643, 659, 677, 701, 727, 743, 761, 787, 811, 827, 853, 863, 883, 911
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 3n log n. - Charles R Greathouse IV, Jul 25 2024
MAPLE
ithprime(3*n)
MATHEMATICA
Table[Prime[3 n], {n, 100}] (* Vincenzo Librandi, May 07 2014 *)
PROG
(Magma) [NthPrime(3*n): n in [1..60] ]; // Vincenzo Librandi, Apr 11 2011
(Sage) [nth_prime(3*n) for n in (1..60)] # Bruno Berselli, May 07 2014
(PARI) a(n)=prime(3*n) \\ Charles R Greathouse IV, Jul 25 2024
CROSSREFS
Cf. similar sequences listed in A246929.
Sequence in context: A049882 A108195 A074798 * A099958 A213483 A049833
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
Corrected by Zak Seidov, Feb 01 2006
STATUS
approved