226560

Appears in sequences

• Square pyramorphic numbers: integers m such that the sum of the first m squares (A000330) ends in m.at n=35A093534
• Rectangular table, read by antidiagonals, where the g.f. of row n, R(x,n), satisfies: R(x,n) = 1 + (n+1)*x*R(x,n+1)^2 for n>=0.at n=41A128570
• Row 3 of table A128570.at n=5A128573
• Molecular topological indices of the graph join C_n + C_n of cycle graphs.at n=29A192848