79860

Appears in sequences

• Saint-Exupéry numbers: ordered products of the three sides of Pythagorean triangles.at n=25A057096
• a(n) = A078215(n)^(1/2).at n=5A078216
• Negative value of coefficient of x^(n-3) in the characteristic polynomial of a certain n X n integer circulant matrix.at n=8A127408
• a(n) = ((n-th prime)^5-(n-th prime)^3)/2.at n=4A138432
• Numbers k such that k mod phi(k) = lambda(k).at n=40A290184
• Number of chiral pairs of rows of length 5 using up to n colors.at n=11A321672
• a(n) = Sum_{k=1..n} (-1)^(k+1) * floor(n/k)^4.at n=16A344722
• Maximum number of induced copies of the diamond graph K_{1,1,2} in an n-node graph.at n=43A352668