If limn→∞n2an=5\lim_{n \to \infty} n^2 a_n = 5limn→∞n2an=5, what can be said about ∑n=1∞an\sum_{n=1}^{\infty} a_n∑n=1∞an?
It converges
It diverges
The test is inconclusive
It oscillates