Let f(i) = prime( f(i - 1) (modulo 10^n) ) with f(0) = 1; a(n) is the term where the period of the sequence f(i) begins to repeat.
A130172
Let f(i) = prime( f(i - 1) (modulo 10^n) ) with f(0) = 1; a(n) is the term where the period of the sequence f(i) begins to repeat.
Terms
- a(0) =2a(1) =4a(2) =2a(3) =62a(4) =221a(5) =301a(6) =1062a(7) =860a(8) =21189a(9) =35835a(10) =116119a(11) =317168a(12) =3000313
External references
- oeis: A130172