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%I #2 Mar 30 2012 18:37:07
%S 1,2,13,305,26881,9078017,11882207233,60716967030785,
%T 1217207202583019521,96068905115897742032897,
%U 29929069804525281689001787393,36877162272858587692985585499111425
%N Row sums of triangle A134484(n,k) = 2^[n(n-1) - k(k-1)] * C(n,k).
%o (PARI) a(n)=sum(k=0,n,2^(n*(n-1) - k*(k-1))*binomial(n,k))
%Y Cf. A134484.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Oct 28 2007
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