67260
domain: N
Appears in sequences
- Second-order Eulerian numbers <<n,2>>.at n=7A004301
- Second-order Eulerian triangle T(n,k), 1 <= k <= n.at n=38A008517
- Number of ways to place two nonattacking queens on an n X n board.at n=19A036464
- Sum of numerators and denominators of convergents to e.at n=13A085368
- Coefficient triangle for polynomials used for o.g.f.s for unsigned Stirling1 diagonals.at n=42A112007
- Nonnegative values x of solutions (x, y) to the Diophantine equation x^2 + (x + 41)^2 = y^2.at n=13A129288
- Triangle of second-order Eulerian numbers T(n,k) (n>=0, 0 <= k <= n) read by rows.at n=47A201637
- Number of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) 10.at n=7A245129
- Row reversed version of triangle A201637 (second-order Eulerian triangle).at n=52A288874
- E2(n, k), the second-order Eulerian numbers with E2(0, k) = δ_{0, k}. Triangle read by rows, E2(n, k) for 0 <= k <= n.at n=48A340556