Differences between consecutive primes (A001223) but with repeats omitted.

Terms

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