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%I #4 Dec 05 2013 19:56:45
%S 2,9,66,2530,60075,1627941,124324228,1694579076,446626220085,
%T 73706596563655,177223661334786,171986625946535478,
%U 3290057629552053451,551042196782556679305,71028805196838414285480
%N Diagonal of A091793.
%F a(n) = A061431(n)+n*(n+1)/2. - _David Wasserman_, Dec 22 2005
%Y Cf. A091793, A091794.
%K nonn
%O 0,1
%A _Amarnath Murthy_, Feb 18 2004
%E More terms from _David Wasserman_, Dec 22 2005
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