Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,1.
A033122
Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,1.
Terms
- a(0) =1a(1) =4a(2) =17a(3) =69a(4) =276a(5) =1105a(6) =4421a(7) =17684a(8) =70737a(9) =282949a(10) =1131796a(11) =4527185a(12) =18108741a(13) =72434964a(14) =289739857a(15) =1158959429a(16) =4635837716a(17) =18543350865a(18) =74173403461a(19) =296693613844
External references
- oeis: A033122