OFFSET
1,2
COMMENTS
All terms are of the form 2^i*3^j*5^k*7^l.
EXAMPLE
18432 is in the sequence because 18432 = 1!!*8!!*4!!*3!!*2!!.
MATHEMATICA
Do[h=IntegerDigits[n]; l=Length[h]; If[n==Product[h[[k]]!!, {k, l}], Print[n]], {n, 2000000000}]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Farideh Firoozbakht, Sep 10 2004
EXTENSIONS
More terms from Farideh Firoozbakht, Jan 08 2005
STATUS
approved