213906

Appears in sequences

• Largest x such that 1/x + 1/y + 1/z = 1/n.at n=20A082986
• a(n) = (p+2)!/p! where p is the n-th lesser twin prime, A001359(n).at n=23A126251
• a(n) = n*(n+1)*(n*(n+1)+1).at n=22A169938
• a(n) = n^4 + 6n^3 + 14n^2 + 15n + 6.at n=20A176780