OFFSET
0,3
EXAMPLE
729 is in the sequence because (1)it is a square, (2)the sum of its digits is 7+2+9=18 and (3)18 reversed is 81, which is a square.
MATHEMATICA
Select[Range[105]^2, IntegerQ@ Sqrt@ FromDigits@ Reverse@ IntegerDigits@ # &[Total@ IntegerDigits@ #] &] (* Michael De Vlieger, Jan 15 2016 *)
PROG
(PARI) isok(n) = issquare(n) && issquare(eval(concat( Vecrev(Str(sumdigits(n)))))); \\ Michel Marcus, Jan 15 2016
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), Apr 14 2006
EXTENSIONS
a(34) corrected by Vincenzo Librandi, Jan 15 2016
STATUS
approved