52905

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 92.at n=4A031770
• T(n, k) = Sum_{j=k..n} binomial(n, j)*E1(j, j-k), where E1 are the Eulerian numbers A173018. Triangle read by rows, T(n, k) for 0 <= k <= n.at n=57A046802
• Expansion of x^2/((1-3*x)*(1-2*x)^2).at n=10A066810
• Triangular array: the fission of ((2x+1)^n) by (q(n,x)), where q(n,x)=x^n+x^(n-1)+...+x+1.at n=53A193860
• Mirror of the triangle A193860.at n=46A193861
• Triangle T(n,k) read by rows: T(n,k) is the number of length-n ascent sequences with exactly k descents.at n=67A238858
• Number of vertices in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer y coordinates y = 1, 2, ...n.at n=21A392442