First differences of A033286.

Terms

a(0) =4a(1) =9a(2) =13a(3) =27a(4) =23a(5) =41a(6) =33a(7) =55a(8) =83a(9) =51a(10) =103a(11) =89a(12) =69a(13) =103a(14) =143a(15) =155a(16) =95a(17) =175a(18) =147a(19) =113a(20) =205a(21) =171a(22) =227a(23) =289a(24) =201a(25) =155a(26) =215a(27) =165a(28) =229a(29) =547