MathDB
2013 Fall Team #6

Source:

March 26, 2022
number theory

Problem Statement

Let a1<a2<a3<...<an<...a_1 < a_2 < a_3 < ... < a_n < ... be positive integers such that, for n=1,2,3,...,n = 1, 2, 3, ..., a2n=an+n.a_{2n} = a_n + n. Given that if ana_n is prime, then nn is also, find a2014a_{2014}.