28298

Appears in sequences

• Number of partitions of n having exactly one part that is a multiple of 3.at n=47A116634
• 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=22A187858
• Number of alternating permutations on 2n+1 letters that avoid a certain pattern of length 4 (see Lewis, 2012, Appendix, for precise definition).at n=5A217804
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 507", based on the 5-celled von Neumann neighborhood.at n=32A272587
• Square spiral in which each new term is the sum of its two largest neighbors.at n=52A278180
• Number of normal patterns contiguously matched by integer partitions of n.at n=23A335838
• Triangle read by rows: T(n,k) is the number of polygons formed by connecting the vertices of a regular 2n-gon such that the winding number around the center is k and with no side passing through the center.at n=11A343369