OFFSET
1,1
EXAMPLE
a(1)=2016, 2016 is a triangular number and 2016=2*2*2*2*2*3*3*7 i.e. is a product of 8 prime factors so is 8-almost prime.
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Shyam Sunder Gupta, Oct 19 2002
STATUS
approved