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A072781 X-projection of the tabular N X N -> N bijection A072735. 5
0, 1, 0, 2, 2, 1, 2, 3, 2, 0, 3, 4, 4, 3, 1, 3, 4, 5, 4, 2, 0, 4, 5, 6, 6, 5, 3, 1, 4, 5, 6, 7, 6, 4, 2, 0, 5, 6, 7, 8, 8, 7, 5, 3, 1, 5, 6, 7, 8, 9, 8, 6, 4, 2, 0, 6, 7, 8, 9, 10, 10, 9, 7, 5, 3, 1, 6, 7, 8, 9, 10, 11, 10, 8, 6, 4, 2, 0, 7, 8, 9, 10, 11, 12, 12, 11, 9, 7, 5, 3, 1, 7, 8, 9, 10, 11, 12, 13 (list; table; graph; refs; listen; history; internal format)
OFFSET

0,4

PROG

(Scheme) (define (A072781 n) (A025581 (A072734 n)))

CROSSREFS

The Y-projection is A072782. Composition of A025581 & A072734. A072785(n) = A072781(n)-A072738(n).

Sequence in context: A077766 A002345 A071694 * A046923 A184703 A056173

Adjacent sequences:  A072778 A072779 A072780 * A072782 A072783 A072784

KEYWORD

nonn,tabl

AUTHOR

Antti Karttunen Jun 12 2002

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Last modified February 16 19:23 EST 2012. Contains 205945 sequences.