41920

Appears in sequences

• Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four, five or six distinct values for every i,j,k<=n.at n=6A211732
• Expansion of e.g.f. 1/(1 - 3 * x * cos(x))^(1/3).at n=6A385311