2,1
Do[Print[Length[Union[Last[ContinuedFraction[((-1+10^n)/9)^(1/2)]]]]], {n, 2, 18}]
Cf. A002275, A096485, A096487.
Sequence in context: A008317 A139011 A063708 * A011280 A136193 A098513
Adjacent sequences: A096485 A096486 A096487 * A096489 A096490 A096491
nonn
Labos E. (labos(AT)ana.sote.hu), Jun 25 2004