Smallest number having in binary representation a prefix of length n that is also a suffix of its successor.

A091270

Smallest number having in binary representation a prefix of length n that is also a suffix of its successor.

Terms

    a(0) =0a(1) =2a(2) =5a(3) =13a(4) =29a(5) =61a(6) =125a(7) =253a(8) =509a(9) =1021a(10) =2045a(11) =4093a(12) =8189a(13) =16381a(14) =32765a(15) =65533a(16) =131069a(17) =262141a(18) =524285a(19) =1048573a(20) =2097149a(21) =4194301a(22) =8388605a(23) =16777213a(24) =33554429a(25) =67108861a(26) =134217725a(27) =268435453a(28) =536870909a(29) =1073741821

External references