A072739 Y-projection of the tabular N X N -> N bijection A072733.

0, 0, 1, 1, 2, 1, 0, 2, 3, 2, 1, 3, 4, 3, 2, 0, 2, 4, 5, 4, 3, 1, 3, 5, 6, 5, 4, 3, 0, 2, 4, 6, 7, 6, 5, 4, 1, 3, 5, 7, 8, 7, 6, 5, 4, 0, 2, 4, 6, 8, 9, 8, 7, 6, 5, 1, 3, 5, 7, 9, 10, 9, 8, 7, 6, 5, 0, 2, 4, 6, 8, 10, 11, 10, 9, 8, 7, 6, 1, 3, 5, 7, 9, 11, 12, 11, 10, 9, 8, 7, 6, 0, 2, 4, 6, 8, 10, 12, 13

Offset

0,5

Links

Table of n, a(n) for n=0..98.

Prog

(Scheme) (define (A072739 n) (A002262 (A072732 n)))

Crossrefs

The X-projection is A072738. Composition of A002262 and A072732. A072786(n) = A072782(n)-A072739(n).

Sequence in context: A203995 A111374 A325181 * A328699 A030399 A128763

Adjacent sequences: A072736 A072737 A072738 * A072740 A072741 A072742

Keyword

nonn,tabl

Author

Antti Karttunen, Jun 12 2002

Status

approved