login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A143043
10^n-th number divisible by exactly 5 distinct primes.
0
6006, 17490, 67860, 331674, 1980902, 13757850, 106254070, 882141222, 7687451167, 69242679948
OFFSET
1,1
REFERENCES
J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 455, pp 94, Ellipses, Paris 2008.
FORMULA
a(n)=A051270(10^n).
CROSSREFS
Cf. A051270.
Sequence in context: A115429 A373465 A046395 * A031605 A239176 A236975
KEYWORD
more,nonn
AUTHOR
Lekraj Beedassy, Jul 18 2008
EXTENSIONS
a(8)-a(10) from Donovan Johnson, Mar 30 2010
STATUS
approved