A121657 Successive run lengths in decimal expansion of Pi.

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset

1,25

Links

Table of n, a(n) for n=1..105.

Example

a(25) = 2 as the 25th run, the first run of two or more identical digits in 3.14159265358979323846264338..., consists of the two 3s following the first 24 digits.

Mathematica

Length /@ Split@RealDigits[Pi, 10, 111][[1]] (* Robert G. Wilson v, Aug 16 2006 *)

Crossrefs

Cf. A000796, A051480, A082586 (another version).

Sequence in context: A144382 A139553 A078379 * A043282 A031226 A031242

Adjacent sequences: A121654 A121655 A121656 * A121658 A121659 A121660

Keyword

base,nonn

Author

Rick L. Shepherd, Aug 13 2006

Status

approved