Relative of Hofstadter Q-sequence.

Terms

a(0) =28a(1) =10002a(2) =10003a(3) =10004a(4) =10005a(5) =10006a(6) =10007a(7) =10008a(8) =35a(9) =10009a(10) =10010a(11) =10011a(12) =10012a(13) =10013a(14) =10014a(15) =10015a(16) =42a(17) =10016a(18) =10017a(19) =10018a(20) =10019a(21) =10020a(22) =10021a(23) =10022a(24) =49a(25) =10023a(26) =10024a(27) =10025a(28) =10026a(29) =10027