Position of n-th 5 in A030496.

Terms

a(0) =120a(1) =125a(2) =130a(3) =135a(4) =140a(5) =145a(6) =150a(7) =155a(8) =160a(9) =165a(10) =170a(11) =175a(12) =180a(13) =185a(14) =190a(15) =195a(16) =200a(17) =205a(18) =210a(19) =215a(20) =220a(21) =225a(22) =230a(23) =235a(24) =241a(25) =246a(26) =251a(27) =256a(28) =261a(29) =266