a(n) is the smallest number that has exactly n odious divisors (A000069).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =28a(6) =64a(7) =56a(8) =84a(9) =112a(10) =1024a(11) =168a(12) =4096a(13) =448a(14) =336a(15) =728a(16) =36309a(17) =672a(18) =57057a(19) =1456a(20) =1344a(21) =7168a(22) =105105a(23) =2184a(24) =6384a(25) =24150a(26) =5376a(27) =5208a(28) =405405a(29) =4368