33783

Appears in sequences

• McKay-Thompson series of class 23A for Monster.at n=30A058570
• Numbers n such that p(10n) is prime, where p(n) is the number of partitions of n.at n=34A114170
• McKay-Thompson series of class 23A for the Monster group with a(0) = 1.at n=30A134781
• 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, 0, 1), (-1, 1, 1), (0, 0, 1), (1, -1, 1), (1, 0, -1)}.at n=10A148362
• (1, 3, 5, 7, 9, ...) convolved with (1, 0, 3, 5, 7, 9, ...).at n=37A179903
• Numbers k such that 3^k + 10 is prime.at n=27A217137
• Number of squares after the n-th generation in a symmetric (with 45-degree angles) non-overlapping Pythagoras tree.at n=20A276647
• Number of cyclic compositions (necklaces of positive integers) summing to n with adjacent parts (including the last and first part) being indivisible (either way).at n=38A318730
• a(n) = Sum_{k=1..n} binomial(2*n, n-k) * sigma_2(k).at n=6A356339