TITLE: Is there any result, that says that $\lfloor e^{n} \rfloor$ is never a prime for $n>2$?
QUESTION [5 upvotes]: Is there any result, that says that $\lfloor e^{n} \rfloor$ is never a prime for $n > 2$ ?

REPLY [19 votes]: The counterexamples up to 1000 are:
18, 50, 127, 141, 267, 310