58766

Appears in sequences

• Expansion of (1-8*x+21*x^2-20*x^3+5*x^4)/(1-9*x+28*x^2-35*x^3+15*x^4-x^5).at n=11A211216
• a(n) is the number of permutations of length n that avoid the pattern 321 and the mesh pattern (12, 283) or the same sequence for the mesh pattern (12, 433).at n=11A289614