OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..2000
MATHEMATICA
Differences[Flatten[Position[RealDigits[Pi, 10, 1000][[1]], 9]]]-1 (* Harvey P. Dale, Feb 10 2019 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Daniel Drijard (daniel.drijard(AT)cern.ch)
STATUS
approved