111882

Appears in sequences

• Triangle read by rows: T(n,k) is the number of k-matchings in the P_4 X P_n lattice graph.at n=41A100265
• 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, 1, -1), (0, 0, 1), (1, -1, 0), (1, 0, 1)}.at n=10A149886
• A triangle related to the GF(z) formulas of the rows of the ED3 array A167572.at n=26A167583
• Expansion of Sum_{k>=1} (-1 + Product_{j>=1} (1 + j*x^(k*j))).at n=25A318290