65126

Appears in sequences

• Expansion of (1+3*x+9*x^2+9*x^3+9*x^4+3*x^5+x^6) /( (1+x)^2 * (1-x)^5 ).at n=20A175898
• a(n) = (35*n^4 - 105*n^3 + 160*n^2 - 120*n + 36)/6.at n=10A181342