A355905 Leftmost path in the tree T_0 of all negasemiternary (or NST) fractions whose 2-adic part is zero.

0, 2, 1, 1, 0, 1, 1, 1, 1, 2, 1, 1, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 1, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 1, 2, 1, 2, 0, 1, 1, 2, 0, 1, 0, 2, 1, 2, 0, 2, 0, 2, 0, 2, 1, 2, 1, 1, 1, 2, 0, 1, 1, 1, 0, 2, 1, 2, 0, 1, 1

Offset

0,2

Comments

These are the edge labels in the tree. The initial a(0) = 0 is by convention.

Links

Table of n, a(n) for n=0..90.

Don Knuth, Ambidextrous Numbers, Preprint, September 2022. See (7.2).

Crossrefs

Cf. A355904, A355906-A355913.

Sequence in context: A344299 A033665 A104234 * A368183 A367905 A321926

Adjacent sequences: A355902 A355903 A355904 * A355906 A355907 A355908

Keyword

nonn

Author

N. J. A. Sloane, Sep 18 2022

Status

approved