1842873

Appears in sequences

• Expansion of g.f. -x*(5*x^7-20*x^6-2*x^5+54*x^4+7*x^3-20*x^2-8*x-1)/((x^4-x^3-3*x^2+x+1)*(x^4+x^3-3*x^2-x+1)).at n=17A122013