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Number of 2n-bead black-white reversible complementable strings with n black beads and fundamental period 2n.
0

%I #6 Mar 30 2012 18:35:35

%S 1,1,2,6,20,70,243,889,3276,12276,46435,176869,677022,2602197,

%T 10033212,38787495,150286400,583434322,2268848988,8836447021,

%U 34461894010,134564992002,526025788992,2058359779051,8061905110548,31602659997975

%N Number of 2n-bead black-white reversible complementable strings with n black beads and fundamental period 2n.

%F Moebius transform of A045723 (Christian Bower).

%K nonn

%O 0,3

%A _David W. Wilson_