Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=11.

A145185

Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=11.

Terms

    a(0) =11a(1) =1364a(2) =2537720636

External references