1,3

a(n)=n^n-(1/2)Sum{k=1 to infinity}(k^n/2^k)

a(3)=3^3-(1/2)Sum{k=1 to infinity}(k^3/2^k)

=27-1/2(26)

=27-13

=14

Adjacent sequences: A133283 A133284 A133285 this_sequence A133287 A133288 A133289

Sequence in context: A125471 A132010 A126866 this_sequence A097828 A030008 A091030

nonn

Ramesh L. Srigiriraju (rsrigir(AT)vt.edu), Oct 16 2007