Search: id:A121293
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%I A121293
%S A121293 2,52,4140,678570,190899322,82864869804,51724158235372,
%T A121293 44152005855084346,49631246523618756274,71339801938860275191172,
%U A121293 128064670049908713818925644
%N A121293 a(n) = Bell(3*n+2).
%F A121293 E.g.f.: exp(-1)*Sum(n^2*exp(n^3*x)/n!,n=0..infinity).
%Y A121293 Cf. A000110, A070906.
%Y A121293 Sequence in context: A123803 A101930 A099882 this_sequence A057106 A080973 
               A079179
%Y A121293 Adjacent sequences: A121290 A121291 A121292 this_sequence A121294 A121295 
               A121296
%K A121293 easy,nonn
%O A121293 0,1
%A A121293 Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 24 2006

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