61871

Properties

Appears in sequences

• Numbers whose least quadratic nonresidue (A020649) is 19.at n=25A025027
• The point at which the powers of n merge on an 8-digit calculator.at n=10A216069
• Number of broken 3-diamond partitions of n.at n=18A328541
• a(n) is the least number that can be written in exactly n ways as p*q + q*r + p*r where (p,q,r) is an unordered triple of distinct primes.at n=39A356457
• Number of rooted ordered trees with node weights summing to n, where the root has weight 0, non-root node weights are in {1,2,3}, and no nodes have the same weight as their parent node.at n=12A382096
• Prime numbersat n=6221