%I A087470
%S A087470 1,2,1,3,2,4,1,3,5,2,4,1,6,3,5,2,7,4,1,6,3,8,5,2,7,4,1,9,6,3,8,5,2,10,
               7,
%T A087470 4,1,9,6,3,11,8,5,2,10,7,4,1,12,9,6,3,11,8,5,2,13,10,7,4,1,12,9,6,3,14,
%U A087470 11,8,5,2,13,10,7,4,1,15,12,9,6,3,14,11,8,5,2,16,13,10,7,4,1,15,12,9,6
%N A087470 a(n) = number of the row (counting from initial row 1) of the array R 
               in A087468 that contains n.
%C A087470 A fractal sequence.
%H A087470 Clark Kimberling and John E. Brown, <a href="http://www.cs.uwaterloo.ca/
               journals/JIS/index.html">Partial Complements and Transposable Dispersions</
               a>, J. Integer Seqs., Vol. 7, 2004.
%e A087470 Northwest corner of R:
%e A087470 1 3 7 12 19
%e A087470 2 5 10 16 24
%e A087470 4 8 14 21 30
%e A087470 6 11 18 26 36
%e A087470 9 15 23 32 43
%e A087470 a(11)=4 because 11 is in row 4.
%Y A087470 Cf. A087468, A087469.
%Y A087470 Sequence in context: A156061 A124172 A058933 this_sequence A158456 A084531 
               A023129
%Y A087470 Adjacent sequences: A087467 A087468 A087469 this_sequence A087471 A087472 
               A087473
%K A087470 nonn
%O A087470 1,2
%A A087470 Clark Kimberling (ck6(AT)evansville.edu), Sep 09 2003