A082586 - OEIS

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

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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).