93649domain: NAppears in sequencesa(n) = ceiling(Pi^n).at n=10A001673a(n) = ceiling(Pi^(n/2)).at n=20A102477First semiprime after Pi^n.at n=10A117881Partial sums of primes in which no digit is a prime A061372.at n=20A172523a(n) = ceiling( Pi^(n/3) ).at n=29A212463