Number of length-n binary strings where some nonempty proper prefix is the reverse of a cyclic shift (conjugate) of a suffix.

A323445

Number of length-n binary strings where some nonempty proper prefix is the reverse of a cyclic shift (conjugate) of a suffix.

Terms

    a(0) =0a(1) =2a(2) =4a(3) =10a(4) =20a(5) =44a(6) =88a(7) =182a(8) =364a(9) =740a(10) =1484a(11) =2990a(12) =5992a(13) =12030a(14) =24092a(15) =48278a(16) =96628a(17) =193458a(18) =387052a(19) =774486a(20) =1549220a(21) =3099106a(22) =6198632a(23) =12398466a(24) =24797384a(25) =49596654a(26) =99193464a(27) =198389538a(28) =396777716a(29) =793557898

External references