%I #3 Mar 30 2012 18:57:05

%S 0,1,2,3,0,6,7,5,4,12,13,9,0,8,20,21,15,11,10,14,30,31,23,17,0,16,22,

%T 42,43,33,25,19,18,24,32,56,57,45,35,27,0,26,34,44,72,73,59,47,37,29,

%U 28,36,46,58,90,91,75,61,49,39,0,38,48,60,74,110,111,93,77,63,51,41,40,50,62

%N Rectangular array T by antidiagonals: T(n,k) = rank of n where (n,k) occurs in A097285, for distinct n,k and T(n,n)=0 for all n.

%C Every odd number occurs exactly once above the diagonal and every even, exactly once below the diagonal.

%e Northwest corner:

%e 0 1 3 7 13

%e 2 0 5 9 15

%e 6 4 0 11 17

%e 12 8 10 0 19

%e T(1,4)=7 because in A097285 the unique occurrence of 1,4 is

%e in positions 7,8.

%K nonn,tabl

%O 1,3

%A _Clark Kimberling_, Aug 05 2004