Partial sums of tetradic primes (A068188).

Terms

a(0) =11a(1) =112a(2) =293a(3) =18474a(4) =1026475a(5) =2207286a(6) =4088167a(7) =5970048a(8) =106081049a(9) =206969050a(10) =315070851a(11) =425181862a(12) =536191973a(13) =647373084a(14) =766191895a(15) =946292976a(16) =1127404157a(17) =1309292338a(18) =1497303219a(19) =1686192100a(20) =11694372101a(21) =21776190102