OFFSET
1,1
REFERENCES
S. Fajtlowicz, Written on the Wall: Conjectures of Graffiti, #784 (1994).
FORMULA
a(n) = Product_{i=1..n} A185956(i).
EXAMPLE
a(5) = 2730 = 2 * 3 * 5 * 7 * 13.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, Feb 10 2011
STATUS
approved