a(n) is the smallest k such that f(k) is composite for all m-fold compositions f of the functions 6*x +- 1, 1 <= m <= n.
A345124
a(n) is the smallest k such that f(k) is composite for all m-fold compositions f of the functions 6*x +- 1, 1 <= m <= n.
Terms
- a(0) =20a(1) =50a(2) =284a(3) =1868a(4) =47951a(5) =6245927a(6) =15932178151
External references
- oeis: A345124