%I A117694
%S A117694 1,3,15,130,1565,23331,411775,8388612,193710249,5000000005,142655835311,
%T A117694 4458050224134,151437553296133,5556003412779015,218946945190429695,
%U A117694 9223372036854775816,413620130943168382097,19673204037648268787721
%N A117694 (n^n + n)/2.
%C A117694 a(n) = A066068(n)/2, n>0.
%F A117694 a(n) = (n^n + n)/2
%t A117694 Table[n^n+n,{n,1,30}]/2
%Y A117694 Cf. A066068.
%Y A117694 Sequence in context: A135255 A075475 A074241 this_sequence A108210 A006717 
               A059861
%Y A117694 Adjacent sequences: A117691 A117692 A117693 this_sequence A117695 A117696 
               A117697
%K A117694 nonn
%O A117694 1,2
%A A117694 Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 12 2006