A072741 Y-projection of the tabular N X N -> N bijection A072734.

0, 0, 1, 0, 2, 3, 0, 0, 4, 5, 0, 0, 1, 6, 7, 0, 0, 1, 2, 8, 9, 0, 0, 1, 3, 4, 10, 11, 0, 0, 1, 1, 5, 6, 12, 13, 0, 0, 1, 1, 2, 7, 8, 14, 15, 0, 0, 1, 1, 2, 3, 9, 10, 16, 17, 0, 0, 1, 1, 2, 4, 5, 11, 12, 18, 19, 0, 0, 1, 1, 2, 2, 6, 7, 13, 14, 20, 21, 0, 0, 1, 1, 2, 2, 3, 8, 9, 15, 16, 22, 23, 0, 0, 1

Offset: 0

Author

Antti Karttunen, Jun 12 2002

Keywords

• nonn
• tabl

Crossrefs

The X-projection is A072740. Composition of A002262 & A072735. A072784(n) = A072741(n)-A072737(n).

Programs

Scheme

(define (A072741 n) (A002262 (A072735 n)))