A124979 Numbers in A118882 for which 5 is not a divisor.

169, 221, 289, 338, 377, 442, 481, 493, 533, 578, 629, 676, 689, 697, 754, 793, 841, 884, 901, 949, 962, 986, 1037, 1066, 1073, 1156, 1157, 1189, 1241, 1258, 1261, 1313, 1352, 1369, 1378, 1394, 1417, 1469, 1508, 1513, 1517

Offset: 1

Author

Artur Jasinski, Nov 15 2006

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..5300

Crossrefs

Cf. A118882.

Programs

Python

from itertools import count, islice
from math import prod
from sympy import factorint
def A124979_gen(startvalue=1): # generator of terms >= startvalue
    for n in count(max(startvalue,1)):
        f = factorint(n)
        if n%5 and 1>1):
            yield n
A124979_list = list(islice(A124979_gen(),30)) # Chai Wah Wu, Sep 09 2022

Extensions

Corrected and extended by M. F. Hasler, Feb 08 2009

Further corrections following an observation by P. McNab, by M. F. Hasler, Jul 08 2015