Prime gaps: differences between consecutive primes.

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =2a(5) =4a(6) =2a(7) =4a(8) =6a(9) =2a(10) =6a(11) =4a(12) =2a(13) =4a(14) =6a(15) =6a(16) =2a(17) =6a(18) =4a(19) =2a(20) =6a(21) =4a(22) =6a(23) =8a(24) =4a(25) =2a(26) =4a(27) =2a(28) =4a(29) =14