28658146domain: NAppears in sequencesa(n) = ceiling(Pi^n).at n=15A001673Nearest integer to Pi^n.at n=15A002160Numbers n such that log_pi(n) is closer to an integer than is log_pi(m) for any m with 2<=m<n.at n=12A080022a(n) = ceiling(Pi^(n/2)).at n=30A102477