375234

Appears in sequences

• Bi-unitary barely abundant numbers: bi-unitary abundant numbers k such that bsigma(k)/k < bsigma(m)/m for all bi-unitary abundant numbers m < k, where bsigma(k) is the sum of the bi-unitary divisors of k (A188999).at n=31A302571
• E.g.f.: exp(2 * (exp(x) - 1 - x - x^2 / 2 - x^3 / 6)).at n=13A339017