Pi function of the primes given in A183194.

Terms

a(0) =10a(1) =20a(2) =20a(3) =52a(4) =52a(5) =52a(6) =1548a(7) =5166a(8) =5166a(9) =31894a(10) =137308a(11) =137308a(12) =272391a(13) =569065a(14) =569065a(15) =9575722a(16) =110367538a(17) =110367538a(18) =110367538a(19) =110367538a(20) =110367538a(21) =59775617846a(22) =184563607175a(23) =184563607175