A197190 a(0) = 2, a(n) = Lucas(phi(n^2)) for n > 0.
2, 1, 3, 18, 47, 15127, 322, 599074578, 4870847, 192900153618, 228826127, 97418273275323406890123, 10749957122, 400010949097364802732720796316482, 358890350005878082, 11981655542024930675232002, 562882766124611619513723647, 699259133978938420550028971714417160188479526095241271647
Offset: 0
Keywords
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..60
Programs
-
Magma
[2] cat [Lucas(EulerPhi(n^2)): n in [1..20]];