OFFSET
1,2
COMMENTS
Terms from V. P. Singh. If k in sequence so is k * 100^m. See A068075 for the smaller of the primitive pairs.
EXAMPLE
324 = 18^2 is a member as 1000 - 324 = 676 = 26^2.
MATHEMATICA
Select[Range[10^4]^2, IntegerQ[Sqrt[10^(IntegerLength[#]) - #]] &] (* Jayanta Basu, Aug 05 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Amarnath Murthy, Mar 07 2002
EXTENSIONS
Edited and extended by Robert G. Wilson v, Mar 20 2002
STATUS
approved