A083625 Starting positions of strings of three 6's in the decimal expansion of Pi.

2440, 3151, 4000, 4435, 5403, 6840, 10163, 10335, 10591, 13594, 15888, 16109, 18504, 20231, 21880, 21881, 23057, 23511, 24566, 25948, 26212, 27703, 27841, 29666, 29868, 29869, 32427, 32428, 33363, 36353, 38132, 40370, 40650, 43523

Offset

1,1

Links

Table of n, a(n) for n=1..34.

Index entries for sequences related to the number Pi

Dave Andersen, Pi-Search Page

Eric Weisstein's World of Mathematics, Pi Digits.

Mathematica

q=9!; z=6; a=RealDigits[Pi, 10, q]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; d=a[[1]][[n+2]]; If[b==z&&c==z&&d==z, AppendTo[lst, n-1]], {n, q-2}]; lst (* Vladimir Joseph Stephan Orlovsky, Jun 19 2009 *)

Crossrefs

Cf. A050245 (two 6's), A083626 (four 6's).

Sequence in context: A345518 A345771 A252047 * A253842 A253835 A253929

Adjacent sequences: A083622 A083623 A083624 * A083626 A083627 A083628

Keyword

base,nonn

Author

Rick L. Shepherd, May 03 2003

Status

approved