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Starting positions of strings of five 4's in the decimal expansion of Pi.
2

%I #14 Jan 16 2015 03:32:50

%S 808650,828499,828500,1159493,1160895,1218361,1264270,1264271,1290645,

%T 1364846,1378434,1394738,1660588,1691163,1691164,1780532,2006297,

%U 2038552,2202740,2341312,2502895,2558106,2562163,2932009,3017406

%N Starting positions of strings of five 4'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 $MaxPrecision=Infinity;Transpose[StringPosition[StringDrop[ToString[N[Pi,10! ]],2],"44444"]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Jun 19 2009 *)

%Y Cf. A083616 (four 4's), A083618 (six 4's).

%K base,nonn

%O 1,1

%A _Rick L. Shepherd_, May 02 2003