A103581 A102371 written in base 2.

1, 10, 111, 1100, 11101, 111110, 1111011, 11111000, 111111001, 1111111010, 11111111111, 111111110100, 1111111110101, 11111111110110, 111111111110011, 1111111111110000, 11111111111110001, 111111111111110010

Offset

1,2

Comments

The number of zeros in the n-th term appears to match A089398. - Benoit Cloitre, Mar 24 2005

Links

Table of n, a(n) for n=1..18.

David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [pdf, ps].

David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers, J. Integer Seq. 8 (2005), no. 3, Article 05.3.6, 15 pp.

Formula

a(n) = A007088(A102371(n)). - Michel Marcus, May 08 2020

Crossrefs

Cf. A007088, A102371, A103583, A103582.

Sequence in context: A159551 A105991 A284352 * A290232 A286855 A288210

Adjacent sequences: A103578 A103579 A103580 * A103582 A103583 A103584

Keyword

nonn,base,easy

Author

Philippe Deléham, Mar 23 2005

Extensions

More terms from Benoit Cloitre, Mar 24 2005

Status

approved