Number of primes <= 11^n.

Terms

a(0) =0a(1) =5a(2) =30a(3) =217a(4) =1715a(5) =14773a(6) =133083a(7) =1240092a(8) =11828689a(9) =114870774a(10) =1131108518a(11) =11262113374a(12) =113154813012