Number of binary strings of length 2n that contain the ones' complements and the reversals of each of their two halves.

A237502

Number of binary strings of length 2n that contain the ones' complements and the reversals of each of their two halves.

Terms

    a(0) =2a(1) =6a(2) =8a(3) =16a(4) =26a(5) =46a(6) =72a(7) =116a(8) =184a(9) =288a(10) =434a(11) =646a(12) =980a(13) =1444a(14) =2122a(15) =3066a(16) =4500a(17) =6452a(18) =9362a(19) =13294a(20) =19256a(21) =27280a(22) =39242a(23) =55306a(24) =79546a(25) =111990a(26) =160514a(27) =225466a(28) =323108a(29) =453520

External references