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A272470
7 times the primes.
4
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
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
KEYWORD
nonn,easy
AUTHOR
Omar E. Pol, Apr 30 2016
STATUS
approved