28147

Appears in sequences

• Expansion of e.g.f.: exp(t*x)/(1 - x/t - t^2 * x^2).at n=61A158706
• Number of -2..2 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 one, two, three, four or five distinct values for every i,j,k<=n.at n=8A211572
• Partial sums of A299289.at n=23A299290