A072736 X-projection of the tabular N X N -> N bijection A072732.

0, 1, 0, 3, 0, 0, 5, 2, 0, 0, 7, 4, 1, 0, 0, 9, 6, 2, 1, 0, 0, 11, 8, 4, 1, 1, 0, 0, 13, 10, 6, 3, 1, 1, 0, 0, 15, 12, 8, 5, 2, 1, 1, 0, 0, 17, 14, 10, 7, 3, 2, 1, 1, 0, 0, 19, 16, 12, 9, 5, 2, 2, 1, 1, 0, 0, 21, 18, 14, 11, 7, 4, 2, 2, 1, 1, 0, 0, 23, 20, 16, 13, 9, 6, 3, 2, 2, 1, 1, 0, 0, 25, 22

Offset

0,4

Links

Table of n, a(n) for n=0..92.

Prog

(Scheme) (define (A072736 n) (A025581 (A072733 n)))

Crossrefs

The Y-projection is A072737. Composition of A025581 & A072733. A072783(n) = A072740(n)-A072736(n).

Sequence in context: A011400 A362271 A115013 * A135090 A303690 A304156

Adjacent sequences: A072733 A072734 A072735 * A072737 A072738 A072739

Keyword

nonn,tabl

Author

Antti Karttunen, Jun 12 2002

Status

approved