OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
a(1)=528, 528 is a triangular number and 528=2*2*2*2*3*11 i.e. is a product of 6 prime factors so is 6-almost prime.
MATHEMATICA
Select[Accumulate[Range[400]], PrimeOmega[#]==6&] (* Harvey P. Dale, May 19 2019 *)
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Shyam Sunder Gupta, Oct 19 2002
STATUS
approved