188325

Appears in sequences

• Number of walks on square lattice.at n=26A005565
• a(n) = 196*n^2 - n.at n=30A158003
• a(n) = 961*n^2 - 31.at n=13A158679
• 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=20A212610
• 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=10A212611