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%I #3 Mar 30 2012 18:57:05
%S 1,3,2,5,7,4,9,11,8,6,13,15,17,12,10,19,21,23,18,16,14,25,27,29,31,24,
%T 22,20,33,35,37,39,32,30,28,26,41,43,45,47,49,40,38,36,34,51,53,55,57,
%U 59,50,48,46,44,42,61,63,65,67,69,71,60,58,56,54,52,73,75,77,79,81,83
%N Rectangular array T by antidiagonals: T(n,k) = rank of k-th n in A097283.
%C As a sequence, this is a permutation of the natural numbers.
%e Northwest corner:
%e 1 3 5 9 13
%e 2 7 11 15 21
%e 4 8 17 23 29
%e 6 12 18 31 39
%Y Cf. A097283.
%K nonn,tabl
%O 1,2
%A _Clark Kimberling_, Aug 05 2004