Convolution of primes with odd primes.

Terms

a(0) =6a(1) =19a(2) =44a(3) =89a(4) =162a(5) =271a(6) =424a(7) =633a(8) =910a(9) =1275a(10) =1732a(11) =2309a(12) =3018a(13) =3859a(14) =4872a(15) =6057a(16) =7446a(17) =9051a(18) =10888a(19) =12997a(20) =15358a(21) =18011a(22) =20972a(23) =24277a(24) =27950a(25) =31991a(26) =36464a(27) =41325a(28) =46602a(29) =52367