A072737 Y-projection of the tabular N X N -> N bijection A072732.

0, 0, 2, 0, 1, 4, 0, 0, 3, 6, 0, 0, 1, 5, 8, 0, 0, 1, 3, 7, 10, 0, 0, 1, 2, 5, 9, 12, 0, 0, 1, 1, 4, 7, 11, 14, 0, 0, 1, 1, 2, 6, 9, 13, 16, 0, 0, 1, 1, 2, 4, 8, 11, 15, 18, 0, 0, 1, 1, 2, 3, 6, 10, 13, 17, 20, 0, 0, 1, 1, 2, 2, 5, 8, 12, 15, 19, 22, 0, 0, 1, 1, 2, 2, 3, 7, 10, 14, 17, 21, 24, 0, 0

Offset

0,3

Links

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

Prog

(Scheme) (define (A072737 n) (A002262 (A072733 n)))

Crossrefs

The X-projection is A072736. Composition of A002262 and A072733. A072784(n) = A072741(n)-A072737(n).

Sequence in context: A258210 A258228 A271584 * A061290 A099096 A099089

Adjacent sequences: A072734 A072735 A072736 * A072738 A072739 A072740

Keyword

nonn,tabl

Author

Antti Karttunen, Jun 12 2002

Status

approved