OFFSET
1,1
EXAMPLE
50 is a term because 50_10 = 200_5. - Jon E. Schoenfield, May 19 2019
MATHEMATICA
Select[Range[1000], DigitCount[#, 5, 0]==2&&DigitCount[#, 5, 2]==1&] (* Harvey P. Dale, Feb 02 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved