Starting index of a string of 4 or more consecutive equal digits in decimal expansion of Pi.

Terms

a(0) =763a(1) =764a(2) =765a(3) =1590a(4) =4752a(5) =4903a(6) =5242a(7) =5323a(8) =5864a(9) =7965a(10) =12487a(11) =12701a(12) =13391a(13) =16733a(14) =17535a(15) =17536a(16) =17989a(17) =19438a(18) =19447a(19) =19448a(20) =21881a(21) =22754a(22) =24467a(23) =24468a(24) =28468a(25) =28469a(26) =29505a(27) =29869a(28) =30797a(29) =31901