A083603 Starting positions of strings of five 1's in the decimal expansion of Pi.

32788, 120459, 141899, 255945, 255946, 266894, 365783, 378301, 663429, 707038, 740956, 802226, 821500, 969110, 973525, 973670, 1084126, 1189427, 1247619, 1295214, 1312579, 1672127, 1876791, 2003018, 2030728, 2136234, 2170463

Offset: 1

Author

Rick L. Shepherd, May 01 2003

Keywords

• base
• nonn

Links

• Index entries for sequences related to the number Pi
• Dave Andersen, Pi-Search Page
• Eric Weisstein's World of Mathematics, Pi Digits.

Crossrefs

Cf. A083602 (four 1's), A083604 (six 1's).

Programs

Mathematica

$MaxPrecision=10^8;a=RealDigits[Pi,10,4*9! ];lst={};Do[b=a[[1]][[n]];c=a[[1]][[n+1]];d=a[[1]][[n+2]];e=a[[1]][[n+3]];f=a[[1]][[n+4]];If[b==1&&c==1&&d==1&&e==1&&f==1,AppendTo[lst,n-1]],{n,3*7!,4*9!-4}];lst (* Vladimir Joseph Stephan Orlovsky, Jun 07 2009 *)