First differences of odd split numbers (A036382).

Terms

a(0) =12a(1) =2a(2) =4a(3) =26a(4) =4a(5) =6a(6) =2a(7) =10a(8) =4a(9) =2a(10) =12a(11) =24a(12) =4a(13) =2a(14) =6a(15) =2a(16) =2a(17) =2a(18) =8a(19) =4a(20) =2a(21) =4a(22) =10a(23) =2a(24) =6a(25) =6a(26) =6a(27) =8a(28) =14a(29) =42