335405

Appears in sequences

• Number of additive cyclic codes over GF(4) of length n.at n=16A143695
• Heinz numbers of integer partitions whose reciprocal sum is 1.at n=33A316855
• Heinz numbers of aperiodic integer partitions into relatively prime parts whose reciprocal sum is 1.at n=19A316888
• Heinz numbers of aperiodic integer partitions whose reciprocal sum is 1.at n=28A316889
• Heinz numbers of integer partitions into relatively prime parts whose reciprocal sum is 1.at n=19A316890
• Array read by ascending antidiagonals: A(n, k) = (k^n - 1)^2/(k - 1), with k >= 2.at n=40A379587
• Numbers k for which gcd(k, A003961(k)) = gcd(sigma(k), A003961(k)) > 1, and that satisfy Euler's condition for odd perfect numbers (A228058).at n=8A387166