19567

Appears in sequences

• Integers n > 10553 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10553.at n=16A063061
• 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, 0), (0, 0, -1), (1, -1, 1), (1, 1, 1)}.at n=8A149674
• G.f. A(x) satisfies A(x) = x*(A(x)^5 + 3*A(x)^4 + 4*A(x)^3 + 3*A(x)^2 + 2*A(x) + 1).at n=8A186858
• Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,0,4 for x=0,1,2,3,4.at n=5A196742
• Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,0,4 for x=0,1,2,3,4.at n=3A196744
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,1,0,4 for x=0,1,2,3,4.at n=39A196746
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,1,0,4 for x=0,1,2,3,4.at n=41A196746
• Numbers n such that there is an integer k with the property that k^tau(n) = sigma(n).at n=12A225239
• Number of acute triangles, distinct up to congruence, on a centered hexagonal grid of size n.at n=15A241232
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 201", based on the 5-celled von Neumann neighborhood.at n=31A270722
• Setwise difference A340150 \ A340076.at n=41A340151
• Expansion of e.g.f. Product_{k>=1} exp(x^k) * (1 + x^k).at n=7A346964