Numbers n dividing u(n), where the Lucas sequence is defined u(i) = u(i-1) - 3*u(i-2) with initial conditions u(0)=0, u(1)=1.

A228440

Numbers n dividing u(n), where the Lucas sequence is defined u(i) = u(i-1) - 3*u(i-2) with initial conditions u(0)=0, u(1)=1.

Terms

    a(0) =1a(1) =11a(2) =121a(3) =253a(4) =1331a(5) =2783a(6) =5819a(7) =11891a(8) =14641a(9) =29161a(10) =30613a(11) =64009a(12) =130801a(13) =133837a(14) =161051a(15) =273493a(16) =320771a(17) =336743a(18) =558877a(19) =640343a(20) =670703a(21) =704099a(22) =895873a(23) =1438811a(24) =1472207a(25) =1771561a(26) =3008423a(27) =3078251a(28) =3528481a(29) =3544453

External references