69184

Appears in sequences

• Initial members of abundant quintuplets, i.e., values of k such that (k, k+2, k+4, k+6, k+8) are all abundant numbers.at n=14A108926
• Expansion of phi(-q^5) / phi(-q) in powers of q where phi() is a Ramanujan theta function.at n=31A138526
• Molecular topological index of the Andrásfai graphs.at n=15A192790
• Number of lower triangles of a 4 X 4 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by one or less.at n=30A195234
• Lesser of a pair of amicable numbers k < m such that s(k) = m and s(m) = k, where s(k) = A162296(k) - k is the sum of aliquot divisors of k that have a square factor.at n=5A357495