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%I #7 Oct 24 2019 16:05:11
%S 1,12,56,480,2040,16576,69888,557568,2361600,18675712,79613952,
%T 626409472,2686867456,21071708160,90875494400,711081984000,
%U 3081088991232,24069137760256,104712901754880,816979824869376,3566715303624704,27800440481513472,121738713372819456,948129286114508800
%N a(n) = A027144(2n, n-2).
%K nonn
%O 2,2
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Oct 24 2019
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