%I #4 Mar 30 2012 18:56:51
%S 1,1,3,12,46,172,651,2478,9457,36228,139249,536687,2073540,8028826,
%T 31147792,121045410,471128566,1836259944,7165975248,27997121205,
%U 109497724812,428659516902,1679585156639,6586339566777,25847132064141
%N T(n,n-1), array T given by A047010.
%K nonn
%O 1,3
%A _Clark Kimberling_
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