313632

Appears in sequences

• Number of ordered 5-tuples of integers from [ 2,n ] with no common factors among quadruples.at n=32A015655
• Related to Clebsch-Gordan formulas.at n=8A027614
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 35.at n=15A031713
• a(n) = T(n)^2 - n^2, where T(n) is a triangular number.at n=33A085740
• a(n) = Product_{d|n} lcm(d, sigma(d)) where sigma(k) is the sum of divisors of k (A000203).at n=21A334805
• a(n) is the conjectured largest number such that both a(n) and a(n) - n are 11-smooth numbers, or 0 if no such number exists. a(n) can be less than n.at n=31A392256