158611106

Appears in sequences

• Coordination sequence for 9-dimensional cubic lattice.at n=18A008418
• Coordination sequence for C_9 lattice.at n=9A035746
• a(n) = n*(2*n^8 + 84*n^6 + 798*n^4 + 1636*n^2 + 315)/2835.at n=18A099196
• a(n) = [x^(2*n)] ((1 + x)/(1 - x))^n.at n=9A103885