OFFSET
1,1
COMMENTS
FORMULA
a(n) = Prod[i=1..n] A014614(i).
EXAMPLE
a(10) = 32 * 48 * 72 * 80 * 108 * 112 * 120 * 162 * 168 * 176 = 2^33 * 3^12 * 5^2 * 7^2 * 11 which has 50 prime factors with multiplicity.
MATHEMATICA
Rest[FoldList[Times, 1, Select[Range[200], PrimeOmega[#]==5&]]] (* Harvey P. Dale, Feb 07 2012 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Jonathan Vos Post, Oct 19 2006
EXTENSIONS
More terms from Harvey P. Dale, Feb 07 2012
STATUS
approved