175626

Appears in sequences

• Number of reduced words of length n in Coxeter group on 12 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.at n=5A163432
• a(n) = [x^n] Product_{k=1..n} (x^prime(k) + 1 + 1/x^prime(k)).at n=16A369560