Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse.
A045662
Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =6a(4) =32a(5) =50a(6) =204a(7) =266a(8) =1024a(9) =1224a(10) =4900a(11) =5522a(12) =21600a(13) =23998a(14) =95508a(15) =102750a(16) =409600a(17) =437546a(18) =1747152a(19) =1847522a(20) =7380000a(21) =7758870a(22) =31027876a(23) =32449826a(24) =129752064a(25) =135207500a(26) =540783100a(27) =561628620a(28) =2246337184a(29) =2326762742
External references
- oeis: A045662