26296

Appears in sequences

• McKay-Thompson series of class 30F for Monster.at n=39A058617
• Integers that are Rhonda numbers to base 16.at n=8A100975
• McKay-Thompson series of class 30F for the Monster group with a(0) = 1.at n=39A205977
• a(n) = n-th Rhonda number to base b = n-th composite number, cf. A002808.at n=8A255880
• Number of square lattice walks of length 2n starting and ending at (0,0) and avoiding the West quadrant {(i,j): i < -|j|}.at n=5A260154
• Number of edges in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and n+2 equally spaced points along the diameter (a total of 2n+2 points). See Comments for precise definition.at n=13A334459
• Sum of numbers of y-multisets of divisors of x for each x >= 1, y >= 0, x + y = n.at n=26A343661
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k torus up to horizontal reflections by a tile that is not fixed under horizontal reflection.at n=31A368306