20798

Appears in sequences

• Binary widths of the terms of A072638.at n=16A072641
• Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n having exactly k down steps hitting the x-axis.at n=49A101275
• Table which contains in row n the mapping of the n-th block of 4 primes to 4 integers.at n=25A162156
• Number of 3-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-queen's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.at n=19A187858
• Number of partitions of n^2 into powers of 2.at n=11A196880
• Number of partitions of n such that the multiplicity of the greatest part is a part.at n=38A240494
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 557", based on the 5-celled von Neumann neighborhood.at n=26A272926
• Expansion of g.f. A(x) satisfying 1 = Sum_{n>=0} (-x)^n * A(x)^n / Product_{k=1..n+1} (1 + (-x)^k).at n=15A363307
• Integers k such that the sum of the first k noncubes is a square.at n=8A373767