OFFSET
0,3
COMMENTS
Differs from A062371 in that here the digit 0 is included in the product and so every number containing a zero belongs to this sequence. - D. S. McNeil, Dec 01 2010
EXAMPLE
149 is in the sequence because 1*4*9 = 6^2; 20 is in the sequence because 2*0 = 0^2.
MATHEMATICA
Select[Range[1000], IntegerQ[Sqrt[Times @@ (IntegerDigits[#])]] &]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Michel Lagneau, Dec 01 2010
STATUS
approved