A272470 7 times the primes.

14, 21, 35, 49, 77, 91, 119, 133, 161, 203, 217, 259, 287, 301, 329, 371, 413, 427, 469, 497, 511, 553, 581, 623, 679, 707, 721, 749, 763, 791, 889, 917, 959, 973, 1043, 1057, 1099, 1141, 1169, 1211, 1253, 1267, 1337, 1351, 1379, 1393, 1477, 1561, 1589, 1603, 1631, 1673, 1687, 1757, 1799, 1841, 1883, 1897

Offset

1,1

Links

Table of n, a(n) for n=1..58.

Formula

a(n) = 7*prime(n) = 7*A000040(n).

Mathematica

7 Prime@ Range@ 58 (* Michael De Vlieger, May 01 2016 *)

Prog

(PARI) a(n) = 7*prime(n); \\ Michel Marcus, May 01 2016
(Python)
from sympy import prime
for n in range(1, 1000):print(7*prime(n), end=", ") # Soumil Mandal, May 08 2016

Crossrefs

Column 4 of A272214.

k times the primes (k=1..6): A000040, A100484, A001748, A001749, A001750, A138636.

Sequence in context: A100467 A082802 A258217 * A094393 A128705 A073250

Adjacent sequences: A272467 A272468 A272469 * A272471 A272472 A272473

Keyword

nonn,easy

Author

Omar E. Pol, Apr 30 2016

Status

approved