839160

Appears in sequences

• 1 / min{1/n - 1/a - 1/b > 0}, where a and b are integers.at n=34A045470
• a(n) = n^2 * (n^2 - 1)/2.at n=35A083374
• Triangular numbers which are 10-almost primes.at n=9A101744
• Row sums of the triangle A045975.at n=35A204558
• Triangular numbers that are the product of 4 distinct triangular numbers greater than 1.at n=6A226501
• Triangular numbers k such that phi(k) is a square number, where phi(k) is the Euler totient function (A000010).at n=24A287473
• Number of chiral pairs of a row of n colors using 6 or fewer colors.at n=7A320524
• Triangular numbers such that the three numbers before it and the three numbers after it are squarefree.at n=33A374393
• Expansion of e.g.f. exp( (x / (1-x))^3 ) / (1-x)^3.at n=7A375227