A161761 Binary representation of A139224(n).

11, 10101, 111010001, 1111101000001, 1111111111101000000000001, 111111111111111010000000000000001, 1111111111111111101000000000000000001, 1111111111111111111111111111101000000000000000000000000000001

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Crossrefs

Cf. A000396, A000668, A139224, A061652.

Sequence in context: A050647 A267054 A082265 * A114754 A157709 A267815

Adjacent sequences: A161758 A161759 A161760 * A161762 A161763 A161764

Keyword

nonn,base

Author

Juri-Stepan Gerasimov, Jun 18 2009

Extensions

Keyword:base added by R. J. Mathar, May 21 2010

Status

approved