80417

Appears in sequences

• The non-common part of the smaller number of an amicable pair.at n=34A180326
• a(n) = n*(7*n^2-12*n+7)/2.at n=29A226451
• Members of a pair (m,n) such that sigma(m) = sigma(n) = sigma(n-m), m < n where sigma = A000203.at n=33A239939
• Members of a pair (m,n) such that sigma(m) = sigma(n) = sigma(n-m), m < n where sigma = A000203.at n=35A239939