OFFSET
1,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..64235
EXAMPLE
466 is in the sequence because 4*6*6 = 144 = 12^2.
MATHEMATICA
FromDigits /@ Select[Join @@ Map[Tuples[{1, 2, 3, 4, 6, 8, 9}, #] &, Range@4], IntegerQ@Log[12, Times @@ #] &]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Isaac Weiss and Henry Potts-Rubin, Jun 29 2018
EXTENSIONS
Two duplicate terms removed by Alois P. Heinz, Oct 20 2019
STATUS
approved