a(n) = A038394(n)^^A038394(n) (mod 10^len(A038394(n))), where ^^ indicates tetration or hyper-4 (e.g., 3^^4=3^(3^(3^3))).

A317903

a(n) = A038394(n)^^A038394(n) (mod 10^len(A038394(n))), where ^^ indicates tetration or hyper-4 (e.g., 3^^4=3^(3^(3^3))).

Terms

    a(0) =4a(1) =76a(2) =176a(3) =4176a(4) =314176a(5) =91314176a(6) =891314176a(7) =80891314176

External references