88281

Appears in sequences

• Sum of numbers that can be written as t*n + u*(n+1) for nonnegative integers t,u in exactly one way.at n=16A076454
• Number of reduced words of length n in Coxeter group on 18 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.at n=4A163104
• Expansion of (1+4*x+x^2)/((1+x)^2*(1-x)^5).at n=32A233329