317000

Appears in sequences

• a(n) = 6*binomial(n,4) + 5*binomial(n,2) - 4*n + 5.at n=34A066455
• Expansion of (-x+2*x^2-x^3-x^4-2*x^5)/(-1+3*x-2*x^2-x^4+x^5).at n=21A221949