76293

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (0, 1, -1), (1, 0, 1), (1, 1, -1)}.at n=9A149470
• Triangle T(n,k), n>=1, 0<=k<=3^n, read by rows: row n gives the coefficients of the chromatic polynomial of the Hanoi graph H_n, highest powers first.at n=18A193233
• Triangle read by rows: coefficients of the chromatic polynomial of the n-Hanoi graph.at n=37A288839
• Triangular array read by rows. T(n,k) is the number of elements of rank k in the order complex of the poset P = [n] X [n], n=0, k=0 or n>0, 0<=k<=2n-1.at n=48A337192