Numbers k such that k > first location of string of k in decimal expansion of Pi.

Terms

a(0) =4a(1) =5a(2) =9a(3) =14a(4) =15a(5) =23a(6) =26a(7) =32a(8) =33a(9) =35a(10) =38a(11) =41a(12) =43a(13) =46a(14) =50a(15) =51a(16) =53a(17) =58a(18) =59a(19) =62a(20) =64a(21) =65a(22) =69a(23) =71a(24) =74a(25) =75a(26) =78a(27) =79a(28) =81a(29) =82