T(n,k)=Number of n-bead necklaces labeled with numbers -k..k not allowing reversal, with sum zero and three times sum of squares <= n*k*(k+1).

A208814

T(n,k)=Number of n-bead necklaces labeled with numbers -k..k not allowing reversal, with sum zero and three times sum of squares <= n*k*(k+1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =3a(6) =1a(7) =3a(8) =5a(9) =4a(10) =1a(11) =3a(12) =7a(13) =15a(14) =5a(15) =1a(16) =4a(17) =13a(18) =37a(19) =59a(20) =22a(21) =1a(22) =4a(23) =19a(24) =82a(25) =185a(26) =187a(27) =37a(28) =1a(29) =5

External references