A049516 Starting index of a string of 4 or more consecutive equal digits in decimal expansion of Pi.

763, 764, 765, 1590, 4752, 4903, 5242, 5323, 5864, 7965, 12487, 12701, 13391, 16733, 17535, 17536, 17989, 19438, 19447, 19448, 21881, 22754, 24467, 24468, 28468, 28469, 29505, 29869, 30797, 31901, 32428, 32479, 32789, 32790, 33108

Offset

1,1

Comments

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

Links

Table of n, a(n) for n=1..35.

Mathematica

ConsecutiveOccurrences1[alist_, n_] := Flatten @ Position[ Apply[ SameQ, Partition[ alist, n, 1], {1}], True]; ConsecutiveOccurrences1[ First[ RealDigits[Pi, 10, 33172]], 4]
SequencePosition[RealDigits[Pi, 10, 34000][[1]], {x_, x_, x_, x_}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jan 16 2019 *)

Crossrefs

Cf. A049514, A049515, A049517, A049518, A049519, A049520, A049521, A049522, A049523.

Sequence in context: A210081 A083645 A145718 * A049517 A121321 A084072

Adjacent sequences: A049513 A049514 A049515 * A049517 A049518 A049519

Keyword

nonn,base

Author

Harvey P. Dale

Extensions

Edited by Robert G. Wilson v, May 09 2003

Status

approved