Number of n-bead necklaces with n+1 colors for n>0, with a(0)=1.

A121773

Number of n-bead necklaces with n+1 colors for n>0, with a(0)=1.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =24a(4) =165a(5) =1560a(6) =19684a(7) =299600a(8) =5381685a(9) =111111340a(10) =2593758618a(11) =67546215528

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