Starting positions of strings of 3 1's in the decimal expansion of Pi.

Terms

a(0) =153a(1) =983a(2) =3503a(3) =3992a(4) =4508a(5) =6116a(6) =6803a(7) =6963a(8) =8366a(9) =11730a(10) =12527a(11) =12611a(12) =12700a(13) =12701a(14) =13597a(15) =14375a(16) =15190a(17) =16732a(18) =16733a(19) =19627a(20) =22270a(21) =22897a(22) =23208a(23) =23244a(24) =23660a(25) =25205a(26) =25448a(27) =25752a(28) =27053a(29) =29492