A165359 Column 1 of Left-justified Wythoff Array.

1, 2, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 6, 5, 6, 5, 6, 7, 6, 7, 5, 7, 8, 6, 8, 9, 7, 9, 6, 8, 10, 7, 9, 11, 8, 10, 7, 9, 11, 8, 10, 7, 9, 11, 8, 10, 12, 9, 11, 8, 10, 12, 9, 11, 8, 10, 12, 9, 11, 13, 10, 12, 9, 11, 13, 10, 12, 14, 11, 13, 10, 12, 14, 11, 13, 10, 12, 14, 11, 13, 15, 12, 14, 11, 13

Offset

1,2

Comments

The first two columns of the left-justified Wythoff array (A165357)

consist of pairs (a,b) having a>b>=0, and each such pair occurs exactly once.

For the numbers b=b(n), see A165360.

Links

Table of n, a(n) for n=1..85.

N. J. A. Sloane, Classic Sequences.

Example

The first ten pairs (a,b) are (1,0), (2,1), (2,0), (3,0), (4,0)
(3,1), (4,1), (3,2), (4,2), (5,2).

Crossrefs

A165357, A165360.

Sequence in context: A214744 A014656 A003078 * A002308 A056796 A061295

Adjacent sequences: A165356 A165357 A165358 * A165360 A165361 A165362

Keyword

nonn

Author

Clark Kimberling, Sep 16 2009

Status

approved