

A121971


a(n) is the smallest number such that pi(n) divides n a recordbreaking prime number of times.


0



2, 27, 330, 3059, 175197, 1304498, 70115412, 514272411, 27788566029, 11091501630949, 81744303089590, 32781729631790293, 1784546064357412171, 13169525310647352914, 717466145742128063267
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..15.


FORMULA

a(n) = A038625(A000040(n)).  Ridouane Oudra, Aug 11 2019


EXAMPLE

a(3)=330 because pi(330)=66 and 330 divided by 66 is 5, the first prime greater than the prime quotient in a(2) which was 3.


CROSSREFS

Cf. A000720, A000040, A038625.
Sequence in context: A199021 A091709 A083384 * A278790 A277832 A221674
Adjacent sequences: A121968 A121969 A121970 * A121972 A121973 A121974


KEYWORD

more,nonn


AUTHOR

G. L. Honaker, Jr., Sep 04 2006


EXTENSIONS

a(10)a(11) from Donovan Johnson, Dec 02 2009
a(12)a(15) from Ridouane Oudra, Aug 11 2019


STATUS

approved



