A042975 Decimal expansion of sqrt(0.121121112...).

3, 4, 8, 0, 2, 4, 5, 8, 5, 4, 9, 8, 0, 9, 5, 3, 9, 4, 4, 2, 8, 8, 3, 3, 3, 6, 8, 4, 2, 4, 0, 9, 5, 7, 1, 9, 7, 2, 6, 4, 0, 7, 8, 7, 7, 2, 1, 2, 8, 6, 6, 2, 8, 1, 6, 0, 4, 5, 6, 3, 0, 3, 6, 4, 9, 7, 4, 4, 1, 4, 8, 2, 4, 2, 2, 0, 5, 7, 6, 4, 1, 3, 6, 0, 8, 7, 3, 9, 2, 7, 1, 3, 6, 8, 4, 3, 1, 6, 8

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000
• C. V. Eynden, Problem 10439. An irrational mimic of 1/9, Amer. Math. Monthly, 104 (1997), 873.

Crossrefs

Cf. A042974.

Programs

Mathematica

With[{c=FromDigits[Flatten[Most[Riffle[Table[PadRight[{},n,1],{n,50}], 2]]]]},RealDigits[Sqrt[c/10^IntegerLength[c]],10,120][[1]]] (* Harvey P. Dale, Oct 12 2013 *)