Three-fold convolution of primes with themselves.

Terms

a(0) =8a(1) =36a(2) =114a(3) =291a(4) =669a(5) =1386a(6) =2678a(7) =4851a(8) =8373a(9) =13858a(10) =22134a(11) =34263a(12) =51635a(13) =75972a(14) =109374a(15) =154483a(16) =214383a(17) =292812a(18) =394148a(19) =523521a(20) =686901a(21) =891112a(22) =1143936a(23) =1454187a(24) =1831973a(25) =2288400a(26) =2836044a(27) =3488969a(28) =4262541a(29) =5173836