a(n) = prime(n+9) - prime(n).

Terms

a(0) =27a(1) =28a(2) =32a(3) =34a(4) =32a(5) =34a(6) =36a(7) =40a(8) =38a(9) =38a(10) =40a(11) =36a(12) =38a(13) =40a(14) =42a(15) =44a(16) =42a(17) =42a(18) =40a(19) =38a(20) =40a(21) =48a(22) =48a(23) =48a(24) =42a(25) =48a(26) =48a(27) =50a(28) =54a(29) =54