Number of ways 1/n can be expressed as the sum of six distinct unit fractions: 1/n = 1/p + 1/q + 1/r + 1/s + 1/t + 1/u, with 0 < p < q < r < s < t < u.

A347569

Number of ways 1/n can be expressed as the sum of six distinct unit fractions: 1/n = 1/p + 1/q + 1/r + 1/s + 1/t + 1/u, with 0 < p < q < r < s < t < u.

Terms

    a(0) =2320a(1) =244817a(2) =3421052a(3) =18420699a(4) =64025680a(5) =131223239a(6) =431008820a(7) =681922142

External references