A031383 a(n) = prime(9*n - 2).

17, 53, 97, 139, 191, 239, 283, 349, 401, 457, 509, 577, 631, 683, 751, 821, 877, 941, 1009, 1061, 1117, 1193, 1259, 1307, 1409, 1459, 1523, 1583, 1637, 1721, 1787, 1871, 1933, 2003, 2081, 2137, 2221, 2287, 2351, 2411, 2477, 2579, 2659

Offset

1,1

Links

Ivan Panchenko, Table of n, a(n) for n = 1..1000

Example

a(1) = 17 because 9 * 1 - 2 = 7 and the 7th prime is 17.
a(2) = 53 because 9 * 2 - 2 = 16 and the 16th prime is 53.

Mathematica

Table[Prime[9n - 2], {n, 45}] (* Alonso del Arte, Apr 08 2011 *)

Prog

(Magma)  [ NthPrime(9*n-2): n in [1..1000] ]; // Vincenzo Librandi, Apr 08 2011

Crossrefs

Cf. A017245.

Sequence in context: A044119 A044500 A142105 * A248697 A180456 A154409

Adjacent sequences: A031380 A031381 A031382 * A031384 A031385 A031386

Keyword

nonn

Author

Jeff Burch

Status

approved