Position of n-th 8 in A007376.

Terms

a(0) =8a(1) =27a(2) =47a(3) =67a(4) =87a(5) =107a(6) =127a(7) =147a(8) =150a(9) =152a(10) =154a(11) =156a(12) =158a(13) =160a(14) =162a(15) =164a(16) =166a(17) =167a(18) =168a(19) =187a(20) =216a(21) =246a(22) =276a(23) =306a(24) =336a(25) =366a(26) =396a(27) =426a(28) =431a(29) =434