318500

Appears in sequences

• Triangle of numbers related to the spectrum of the hydrogen (H) atom.at n=31A119937
• Fourth column (n=4) of triangle A119937.at n=4A119943
• Minimal covering numbers.at n=62A160559
• Numbers whose square can be represented in exactly three ways as the sum of a positive square and a positive fourth power.at n=23A345968
• Triangle read by rows: T(n, k) = e*Gamma(n - k + 1, 1)*binomial(n, k)^2.at n=40A377661