Expansion of x*(1+2*x^2-2*x^3+x^4)/((x-1)*(x^2-2*x-1)*(x^2-x+1)*(x+1)^2).
0, 1, 2, 8, 21, 54, 134, 329, 798, 1934, 4675, 11294, 27274, 65855, 158996
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Thu Nov 19 17:19:12 CET 2009 [seqfan] detective work related to Creighton Dement's "Floretions"