64798

Appears in sequences

• Related to partitions.at n=13A002040
• Number of nonequivalent dissections of a polygon into n pentagons by nonintersecting diagonals rooted at a cell up to rotation and reflection.at n=7A005039
• Numbers of the form 2*p*q where (p,q) is a twin prime pair.at n=12A071142
• Squarefree numbers k such that A076341(k) = 0.at n=19A076352
• Array read by antidiagonals: T(n,k) = number of nonequivalent dissections of a polygon into n k-gons by nonintersecting diagonals rooted at a cell up to rotation and reflection (k >= 3).at n=52A295259
• Intersection of A046346 and (A046346-2).at n=10A309310
• Expansion of Product_{k>0} 1/theta_3(q^k), where theta_3() is the Jacobi theta function.at n=26A320068
• a(n) is the largest integer x such that x/sopf(x) = prime(n) where sopf(x) is the sum of distinct prime factors of x and prime(n) is the n-th prime.at n=40A336493
• a(1) = 12; for n >= 2, a(n) = least positive integer of the form prime(m)*prime(n-m)*prime(n) with m >= 1.at n=41A364434