The positions of ones in the reversed binary expansion of n have integer geometric mean.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =9a(5) =11a(6) =16a(7) =32a(8) =64a(9) =128a(10) =130a(11) =138a(12) =256a(13) =257a(14) =261a(15) =264a(16) =296a(17) =388a(18) =420a(19) =512a(20) =1024a(21) =2048a(22) =2052a(23) =2084a(24) =2306a(25) =2316a(26) =2338a(27) =2348a(28) =4096a(29) =8192