Search: id:A028350
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%I A028350
%S A028350 1,6,210,12012,831402,63740820,5209363380,444799488600,
%T A028350 39209074920090,3541117629057540,325969196485349340,30471769822097981160,
%U A028350 2884881686418189303300,276043232874562618320072
%V A028350 -1,6,210,12012,831402,63740820,5209363380,444799488600,
%W A028350 39209074920090,3541117629057540,325969196485349340,30471769822097981160,
%X A028350 2884881686418189303300,276043232874562618320072
%N A028350 See program line.
%p A028350 a := proc(n) option remember; if n = -1 then -1 else 6*(6*n - 1)*(6*n 
               + 1)*a(n - 1)/((n + 1)*(2*n + 1)) fi; end;
%Y A028350 Sequence in context: A076715 A029549 A087639 this_sequence A099788 A126676 
               A073100
%Y A028350 Adjacent sequences: A028347 A028348 A028349 this_sequence A028351 A028352 
               A028353
%K A028350 sign
%O A028350 0,2
%A A028350 N. J. A. Sloane (njas(AT)research.att.com).

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