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%I #3 May 01 2014 02:47:42
%S 0,0,1,0,2,1,1,2,3,2,0,2,4,3,2,1,3,4,5,4,3,0,2,4,6,5,4,3,1,3,5,6,7,6,
%T 5,4,0,2,4,6,8,7,6,5,4,1,3,5,7,8,9,8,7,6,5,0,2,4,6,8,10,9,8,7,6,5,1,3,
%U 5,7,9,10,11,10,9,8,7,6,0,2,4,6,8,10,12,11,10,9,8,7,6,1,3,5,7,9,11,12,13
%N Y-projection of the tabular N X N -> N bijection A072735.
%o (Scheme) (define (A072782 n) (A002262 (A072734 n)))
%Y The X-projection is A072781. Composition of A002262 and A072734. A072786(n) = A072782(n)-A072739(n).
%K nonn,tabl
%O 0,5
%A _Antti Karttunen_, Jun 12 2002
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