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

A228439

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

Terms

    a(0) =1a(1) =7a(2) =49a(3) =343a(4) =2401a(5) =4753a(6) =16807a(7) =33271a(8) =76783a(9) =117649a(10) =232897a(11) =461041a(12) =537481a(13) =823543a(14) =1630279a(15) =3227287a(16) =3762367a(17) =5764801a(18) =7447951a(19) =11411953a(20) =11527201a(21) =19358969a(22) =22591009a(23) =26336569a(24) =40353607a(25) =44720977a(26) =52135657a(27) =79883671a(28) =80690407

External references