OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Pi Digits
MATHEMATICA
a=RealDigits[Pi, 10, 8! ]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; If[b==1&&c==1, AppendTo[lst, n-1]], {n, 8!-1}]; lst (* Vladimir Joseph Stephan Orlovsky, Jun 02 2009 *)
Flatten[Position[Partition[RealDigits[Pi, 10, 4000][[1]], 2, 1], _?(#=={1, 1}&) ]]-1 (* Harvey P. Dale, Dec 01 2013 *)
SequencePosition[RealDigits[Pi, 10, 4000][[1]], {1, 1}][[;; , 1]]-1 (* Harvey P. Dale, Jul 08 2024 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Edited by N. J. A. Sloane, Aug 10 2010
STATUS
approved