28334

Appears in sequences

• Sum of next n composite numbers.at n=35A072475
• Number of sets of distinct primes, the greatest of which is prime(n), whose arithmetic mean is an integer.at n=18A082552
• a(n) = (1/3)*n^3 - n^2 - (1/3)*n - 1.at n=45A109620
• Number of partitions of n having no parts with multiplicity 3.at n=41A118807
• 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, 1, -1), (1, -1, 1), (1, 0, 1), (1, 1, -1)}.at n=9A148904
• The number of ways that a straight line segment of length n, marked into n equal units, can be surrounded in a plane by one layer of regular polygons of unit edge that fit together without any gaps or overlaps, such that every polygon shares either a vertex or an exact unit edge with the segment. ("Line wreaths of length n.") Ways that differ by reflection or rotation are not counted as different.at n=8A158091
• Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant in the closed interval [-n,n].at n=19A211031
• Number of integer partitions of n such that every pair of distinct parts has a different product.at n=40A325856
• Number of integer partitions of n that can be partitioned into distinct pairs of distinct parts, i.e., into a set of edges.at n=48A339560