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A001165 Position of first even digit after decimal point in sqrt(n). 1
1, 1, 3, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 2, 1, 1, 2, 1, 3, 1, 2, 1, 4, 1, 1, 1, 3, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 1, 2, 1, 1, 4, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 7, 3, 1, 1, 2, 1, 1, 3, 2, 1, 1, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000 (corrected by Sean A. Irvine, April 17 2019)

MATHEMATICA

Flatten[Table[First[Position[Rest[RealDigits[Sqrt[n], 10, 20][[1]]], _?(EvenQ[#]&)]], {n, 100}]] (* Harvey P. Dale, Oct 27 2011 *)

CROSSREFS

Sequence in context: A223728 A030596 A031277 * A137420 A134866 A143261

Adjacent sequences:  A001162 A001163 A001164 * A001166 A001167 A001168

KEYWORD

nonn,base

AUTHOR

Howard Givner

STATUS

approved

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Last modified August 18 01:14 EDT 2019. Contains 326059 sequences. (Running on oeis4.)