Convolution of natural numbers with (1, p(1), p(2), ... ), where p(k) is the k-th prime.

Terms

a(0) =1a(1) =4a(2) =10a(3) =21a(4) =39a(5) =68a(6) =110a(7) =169a(8) =247a(9) =348a(10) =478a(11) =639a(12) =837a(13) =1076a(14) =1358a(15) =1687a(16) =2069a(17) =2510a(18) =3012a(19) =3581a(20) =4221a(21) =4934a(22) =5726a(23) =6601a(24) =7565a(25) =8626a(26) =9788a(27) =11053a(28) =12425a(29) =13906