Search: id:A055555
Results 1-1 of 1 results found.

%I A055555
%S A055555 1,1,3,21,300,7260,259560,12703320,812871360,65841128640,6584096534400,
%T A055555 796675481078400,114721266640780800,19387894024929830400,3800027228319587865600,
%U A055555 855006126362753549184000,218881568348707987666944000,63256773252773762936322048000
%N A055555 n!*(n!+1)/2.
%Y A055555 Sequence in context: A130032 A126461 A000681 this_sequence A158888 A005329 
               A134528
%Y A055555 Adjacent sequences: A055552 A055553 A055554 this_sequence A055556 A055557 
               A055558
%K A055555 nonn
%O A055555 0,3
%A A055555 N. J. A. Sloane (njas(AT)research.att.com), Jul 19 2000

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