451737

Appears in sequences

• Triangle read by rows: numerators of coefficients of the Debye-type polynomial v_n used for asymptotic Airy-type expansions of Bessel functions of arbitrarily large order.at n=7A144622
• Pairs of primitive deficient numbers having the same value of sigma(k)/k, listed by increasing value of the larger of the two k values.at n=12A212610
• Primitive deficient numbers n having a companion m > n such that sigma(n)/n = sigma(m)/m (ordered by increasing (smallest possible) m).at n=6A212611