%I #19 Jan 22 2023 17:16:10

%S 1722776,3389380,4313727,5466169,14593770,15256174,20202676,36356642,

%T 36356643,39375939,54971455,66780105,66780106,78088568,123921866,

%U 125564426,174904193,195530904,196790272,209136149,212168291,219228757,242798761,249686197,252761434,270520788

%N Starting positions of strings of seven 9's in the decimal expansion of Pi.

%H Dave Andersen, <a href="http://www.angio.net/pi/piquery">Pi-Search Page</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PiDigits.html">Pi Digits.</a>

%H <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a>

%t SequencePosition[RealDigits[Pi,10,4*10^7][[1]],{9,9,9,9,9,9,9}][[All,1]]-1 (* The program generates the first 10 terms of the sequence. *) (* _Harvey P. Dale_, Jan 22 2023 *)

%Y Cf. A083645 (six 9's).

%K nonn,base

%O 1,1

%A _Rick L. Shepherd_, May 06 2003

%E More terms from _Rick L. Shepherd_, Aug 07 2006

%E More terms from _Jinyuan Wang_, Mar 01 2020