63198

Appears in sequences

• a(n) = 4^n + 5^n + 9^n.at n=5A074564
• Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x=R, y=R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=17A212751
• Composite numbers that when written in base 2 are a concatenation of their distinct prime factors without multiplicity in some order.at n=3A352334
• a(n) = number of acyclic orientations of the complete tripartite graph K_{2,2,n}.at n=5A370960
• Number A(n,k) of acyclic orientations of the complete tripartite graph K_{n,n,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=30A372254
• Number T(n,k,j) of acyclic orientations of the complete tripartite graph K_{n,k,j}; triangle of triangles T(n,k,j), n>=0, k=0..n, j=0..k, read by rows.at n=40A372261