A083632 Starting positions of strings of four 7's in the decimal expansion of Pi.
1589, 5241, 5322, 5863, 29504, 32478, 33107, 35457, 40792, 52313, 69841, 81356, 87288, 95735, 96505, 96984, 126389, 135083, 137923, 138108, 145767, 151494, 156637, 162248, 162249, 188346, 197069, 203946, 208362, 211588, 221435, 233147
Offset: 1
Links
- Index entries for sequences related to the number Pi
- Dave Andersen, Pi-Search Page
- Eric Weisstein's World of Mathematics, Pi Digits.
Programs
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Mathematica
Transpose[StringPosition[StringDrop[ToString[N[Pi,9! ]],2],"7777"]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jun 19 2009 *) SequencePosition[RealDigits[Pi,10,240000][[1]],{7,7,7,7}][[;;,1]]-1 (* Harvey P. Dale, Feb 22 2023 *)
Comments