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

Author

Rick L. Shepherd, Aug 13 2006

Keywords

• base
• nonn

Examples

			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.
		

Crossrefs

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

Programs

Mathematica

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