154791

Appears in sequences

• Jordan function ratio J_6(n)/J_2(n).at n=17A194532
• 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=7A212610
• The larger companion to the primitive deficient numbers in A212611.at n=3A212612
• Positive integers n that are equal to the determinant of the circulant matrix formed by the decimal digits of n.at n=24A219324
• Positive integers k that are equal to the absolute value of the determinant of the circulant matrix formed by the decimal digits of k.at n=27A219327
• Larger member of primitive friendly pairs ordered by smallest maximal element.at n=38A233039
• Odd numbers k such that rad(k) divides sigma(k).at n=16A336554
• Positive integers m that are equal to the determinant of the left circulant matrix formed by the decimal digits of m.at n=15A348428
• Let G_n denote the planar graph defined in A358746 with the addition, if n is odd, of the circle containing the initial n points; sequence gives the number of edges in G_n.at n=26A370977