Search: id:A033488
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%I A033488
%S A033488 0,4,20,60,140,280,504,840,1320,1980,2860,4004,5460,7280,
%T A033488 9520,12240,15504,19380,23940,29260,35420,42504,50600,59800,
%U A033488 70200,81900,95004,109620,125860,143840,163680,185504,209440
%N A033488 n*(n+1)*(n+2)*(n+3)/6.
%F A033488 n*C(3+n, 3). - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 10 
               2006
%p A033488 [seq(4*binomial(n,4),n=3..35)]; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Nov 24 2006
%p A033488 a:=n->(sum((numbcomp(n,4)), j=1..n)):seq(a(n), n=3..37); [From Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Aug 24 2008]
%t A033488 f[n_]:=n*(n+1)*(n+2)*(n+3)/6; lst={};Do[AppendTo[lst,f[n]],{n,0,5!}];
               lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 21 2009]
%Y A033488 1/beta(n, 4) in A061928.
%Y A033488 Cf. A000332, A034827, A050534.
%Y A033488 Sequence in context: A127920 A060122 A066970 this_sequence A018211 A135507 
               A131479
%Y A033488 Adjacent sequences: A033485 A033486 A033487 this_sequence A033489 A033490 
               A033491
%K A033488 nonn
%O A033488 0,2
%A A033488 N. J. A. Sloane (njas(AT)research.att.com).

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