a(0) = 1; for n>0, working in binary, write n followed by 1 then n-reversed (including leading zeros); show result in base 10.

A264619

a(0) = 1; for n>0, working in binary, write n followed by 1 then n-reversed (including leading zeros); show result in base 10.

Terms

    a(0) =1a(1) =7a(2) =21a(3) =31a(4) =73a(5) =93a(6) =107a(7) =127a(8) =273a(9) =313a(10) =341a(11) =381a(12) =403a(13) =443a(14) =471a(15) =511a(16) =1057a(17) =1137a(18) =1193a(19) =1273a(20) =1317a(21) =1397a(22) =1453a(23) =1533a(24) =1571a(25) =1651a(26) =1707a(27) =1787a(28) =1831a(29) =1911

External references