244736

Appears in sequences

• Let s(k) denote the sum of the even proper divisors of k. The sequence lists the pairs of numbers (x, y) such that s(x) = y and s(y) = x.at n=28A279812
• List of ordered pairs (x, y) from A279812.at n=30A279950
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 734", based on the 5-celled von Neumann neighborhood.at n=17A290213
• Sequence lists numbers k > 1 such that k^3 == phi(k) (mod sigma(k)), where phi = A000010 and sigma = A000203.at n=8A324215
• Numbers k such that the smallest m such that k | psi(m) is even, psi = A002322.at n=21A341886