a(n) is the total number of rows of circles of radius r packing into a circle of radius R, where r = R/2^n.
A239206
a(n) is the total number of rows of circles of radius r packing into a circle of radius R, where r = R/2^n.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =17a(5) =35a(6) =73a(7) =147a(8) =295a(9) =591a(10) =1181a(11) =2363a(12) =4729a(13) =9459a(14) =18917a(15) =37837a(16) =75673a(17) =151347a(18) =302697a(19) =605395a(20) =1210791a(21) =2421581a(22) =4843163a(23) =9686329a(24) =19372659a(25) =38745319a(26) =77490641a(27) =154981281a(28) =309962565a(29) =619925129
External references
- oeis: A239206