Position of first occurrence of n different digits in the number Pi.
1, 1, 1, 1, 3, 3, 3, 27, 61, 61, 61
0
See S000690 for the position of the last.
T. D. Noe, Plot of 11 terms
(Mma) Flatten[Table[Position[Length /@ Union /@ Partition[RealDigits[Pi, 10, 10000][[1]], n, 1], n, 1, 1], {n, 0, 10}]]
nonn,base,fini,full
T. D. Noe, Jul 20 2015