Starting positions of strings of six 3's in the decimal expansion of Pi.

Terms

a(0) =710100a(1) =710101a(2) =1129019a(3) =3204765a(4) =3204766a(5) =4098542a(6) =4640063a(7) =5524958a(8) =9831707a(9) =10985154a(10) =12376276a(11) =12469058a(12) =12469059a(13) =13230524a(14) =13247803a(15) =15239977a(16) =18216168a(17) =18216169a(18) =19175682a(19) =19175683a(20) =22562616a(21) =23375381a(22) =24287401a(23) =25841185a(24) =27090294a(25) =28715870a(26) =29796271a(27) =29956363