Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=8.

A145182

Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=8.

Terms

    a(0) =8a(1) =536a(2) =153992264

External references