

A134334


Numbers which are not divisible by the number of their prime factors (counted with multiplicity).


13



8, 9, 15, 20, 21, 25, 28, 32, 33, 35, 39, 44, 48, 49, 50, 51, 52, 54, 55, 57, 64, 65, 68, 69, 70, 72, 76, 77, 81, 85, 87, 90, 91, 92, 93, 95, 98, 108, 110, 111, 112, 115, 116, 119, 121, 123, 124, 125, 126, 128, 129, 130, 133, 135, 141, 143, 145, 148, 150, 154, 155, 159
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OFFSET

1,1


LINKS

Hieronymus Fischer, Table of n, a(n) for n = 1..10000


EXAMPLE

a(1) = 8, since 8 = 2*2*2 has 3 prime factors and 8 is not divisible by 3.
a(3) = 15, since 15 = 3*5 has 2 prime factors and 15 is not divisible by 2.


PROG

(PARI) isok(n) = (n % bigomega(n)) \\ Michel Marcus, Jul 15 2013


CROSSREFS

Cf. A000040, A001222, A074946 (complement), A100118, A046363, A133620, A133621.
Cf. A133880, A133890, A133900, A133910, A133911, A134330, A134331, A134332, A134333, A134335, A134344, A134376.
Sequence in context: A101765 A256351 A050688 * A292188 A265221 A286476
Adjacent sequences: A134331 A134332 A134333 * A134335 A134336 A134337


KEYWORD

nonn


AUTHOR

Hieronymus Fischer, Oct 23 2007


STATUS

approved



