First differences of composite connected numbers (A029827).

Terms

a(0) =30a(1) =6a(2) =4a(3) =2a(4) =6a(5) =22a(6) =10a(7) =4a(8) =12a(9) =4a(10) =2a(11) =2a(12) =4a(13) =30a(14) =18a(15) =14a(16) =2a(17) =14a(18) =4a(19) =2a(20) =2a(21) =4a(22) =2a(23) =4a(24) =2a(25) =4a(26) =6a(27) =4a(28) =2a(29) =8