A082586 Length of the run of consecutive equal digits in the decimal expansion of Pi beginning at position n and ignoring any immediately-previous equal digits.

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

Offset

1,25

Comments

Digits 3,1,4,... are indexed 1,2,3,...

Links

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

Example

Pi = 3.141592653589793238462643383279502884... and the first run of 2 starts at position 25, so a(n) = 1 for n < 25, a(25) = 2.
Runs of length 2 begin in positions 25,35,45,60,80,95 then not again until 118. Compare A049514 and A049518.

Crossrefs

Cf. A084073, A121657 (another version).

Sequence in context: A171398 A113607 A351352 * A160094 A043283 A127937

Adjacent sequences: A082583 A082584 A082585 * A082587 A082588 A082589

Keyword

nonn,base,easy

Author

N. J. A. Sloane, May 12 2003

Extensions

More terms from Kyle Hoffman (khoffma1(AT)ashland.edu), Apr 01 2004

Definition clarified by Rick L. Shepherd, Aug 26 2006

Status

approved