Decimal value a(n) of the binary number b(n) obtained by starting from n, sequentially concatenating all binary numbers down to 1 and then sequentially concatenating all binary numbers from 2 up to n.
A261135
Decimal value a(n) of the binary number b(n) obtained by starting from n, sequentially concatenating all binary numbers down to 1 and then sequentially concatenating all binary numbers from 2 up to n.
Terms
- a(0) =1a(1) =22a(2) =475a(3) =20188a(4) =1472229a(5) =112441134a(6) =8415721847
External references
- oeis: A261135