Similar to A137284, but considering Sum{ k = 1,2,3,... } 5^(-nk).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =8a(5) =12a(6) =18a(7) =26a(8) =38a(9) =55a(10) =79a(11) =114a(12) =164a(13) =235a(14) =337a(15) =483a(16) =692a(17) =991a(18) =1418a(19) =2029a(20) =2903a(21) =4154a(22) =5944a(23) =8504a(24) =12167a(25) =17408a(26) =24906a(27) =35633a(28) =50980a(29) =72936