Positions of the digit '5' in the decimal expansion of Pi.

Terms

a(0) =4a(1) =8a(2) =10a(3) =31a(4) =48a(5) =51a(6) =61a(7) =90a(8) =109a(9) =130a(10) =131a(11) =133a(12) =141a(13) =143a(14) =158a(15) =172a(16) =177a(17) =178a(18) =179a(19) =191a(20) =210a(21) =213a(22) =225a(23) =240a(24) =252a(25) =256a(26) =272a(27) =304a(28) =315a(29) =316