A073140 Sum of the largest and smallest number having in binary representation the same number of 0's and 1's as n.

0, 2, 4, 6, 8, 11, 11, 14, 16, 21, 21, 25, 21, 25, 25, 30, 32, 41, 41, 47, 41, 47, 47, 53, 41, 47, 47, 53, 47, 53, 53, 62, 64, 81, 81, 91, 81, 91, 91, 99, 81, 91, 91, 99, 91, 99, 99, 109, 81, 91, 91, 99, 91, 99, 99, 109, 91, 99, 99, 109, 99, 109, 109, 126, 128, 161, 161, 179

Offset: 0

Author

Reinhard Zumkeller, Jul 16 2002

Keywords

• nonn

Comments

a(n) = A073137(n) + A073138(n).

Links

• Index entries for sequences related to binary expansion of n

Crossrefs

Cf. A007088, A073139, A073141.