A072739 - OEIS

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A072739

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

5

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

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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