0,1

a(n) = n^3/3 - n^2 + 8n/3 + 4

G.f.: (8*x^2 - 10*x + 4)/(x^4 - 4*x^3 + 6*x^2 - 4*x + 1) - Alexander R. Povolotsky (pevnev(AT)juno.com), Mar 31 2008

Cf. A053016.

Adjacent sequences: A136251 A136252 A136253 this_sequence A136255 A136256 A136257

Sequence in context: A023374 A053016 A078785 this_sequence A146528 A020153 A008438

nonn

Rolf Pleisch (r_pleisch(AT)gmx.ch), Mar 17 2008