1,1

Harvey P. Dale, Table of n, a(n) for n = 1..2000

Differences[Flatten[Position[RealDigits[Pi, 10, 1000][[1]], 9]]]-1 (* Harvey P. Dale, Feb 10 2019 *)

Cf. A135088, A000796.

Sequence in context: A103217 A136273 A125233 * A257468 A278867 A281288

Adjacent sequences: A139724 A139725 A139726 * A139728 A139729 A139730

nonn,base

Daniel Drijard (daniel.drijard(AT)cern.ch)

approved