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A229070
Smallest missing number in first 10^n digits after the decimal point in expansion of Euler's constant (or Euler-Mascheroni constant) gamma.
0
0, 11, 106, 1001, 10002, 13525, 129389
OFFSET
1,2
EXAMPLE
a(1) = 0 because number 0 is missing in first 10^1 = 10 digits after decimal point in expansion of Euler's constant, that is, 0.5772156649....
MATHEMATICA
Do[With[{r = ToString[FromDigits[Rest[RealDigits[EulerGamma, 10, 10^k][[1]]]]]}, Do[If[StringPosition[r, ToString[n]] == {}, Print[n]; k = k + 1; Break[]], {n, 0, 10000000}]], {k, 1, 7}]
CROSSREFS
Cf. A001620.
Sequence in context: A302925 A250416 A116011 * A365775 A058715 A140617
KEYWORD
nonn,base,more
AUTHOR
Shyam Sunder Gupta, Sep 12 2013
STATUS
approved