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T(2n,n-1), T given by A026714.
0

%I #4 Mar 30 2012 18:56:10

%S 1,7,40,217,1157,6128,32366,170731,900070,4743641,24996639,131709418,

%T 693958384,3656283198,19263738121,101493477133,534729209960,

%U 2817271322394,14843040451314,78201799914387,412012556289626,2170721261223869

%N T(2n,n-1), T given by A026714.

%K nonn

%O 1,2

%A _Clark Kimberling_