24744

Appears in sequences

• Powers of sqrt(18) rounded up.at n=7A017960
• Powers of fourth root of 18 rounded up.at n=14A018098
• Expansion of (theta_3(z)*theta_3(23z)+theta_2(z)*theta_2(23z))^4.at n=36A028660
• 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, 0), (0, 0, -1), (0, 1, 0), (1, 0, 1)}.at n=9A149944
• Numbers n such that sopfr(n-1) | (n+sopfr(n+1)) and sopfr(n+1) | (n+sopfr(n-1)), where sopfr = A001414 (sum of prime factors with repetition).at n=3A196994
• Number of 0..n arrays x(0..4) of 5 elements with zero 4th difference.at n=18A200156
• Expansion of ((Product_{n>=1} (1 - x^(5*n))/(1 - x^n)^5) - 1)/5 in powers of x.at n=12A277974
• Numbers k such that 6*10^k - 91 is prime.at n=20A294945
• Number of rooted trees with n nodes in which all positive outdegrees are the same.at n=32A298422
• Number of maximal subsets of {1..n} containing n such that every pair of distinct elements has a different quotient.at n=31A325869
• Number of capturing set partitions of {1..n} that are not nesting.at n=11A326249
• Number of unordered n-tuples {x_1, x_2, x_3, ..., x_n} such that Sum_{k=1..n} 1/x_k is an integer and x_k is an integer between 1 and n for 1 <= k <= n.at n=15A349148
• Irregular table read by rows: Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: T(n,k) is the number of k-sided finite polygons formed, for k>=3, in the resulting graph.at n=36A386562