Number of Josephus subsets of n people.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =128a(8) =256a(9) =509a(10) =1024a(11) =2048a(12) =4083a(13) =8192a(14) =16384a(15) =32742a(16) =65536a(17) =131072a(18) =262090a(19) =524288a(20) =1048338a(21) =2096358a(22) =4194304a(23) =8388608a(24) =16776908a(25) =33553887a(26) =67108864