510050

Appears in sequences

• Positive integers n such that n | (2^n + n/2 + 1).at n=22A015945
• Numbers k such that k | 3^k + 1.at n=15A015949
• Numbers k such that k | 7^k + 1.at n=18A015954
• Numbers k such that k | 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k.at n=28A057283
• a(n) = (p^3 - p^2)/2, where p = prime(n).at n=25A138416
• a(n) is the smallest even number k such that the symmetric representation of sigma(k) has n parts.at n=8A320521
• Square array read by antidiagonals in which T(n,k) is the n-th even number j with the property that the symmetric representation of sigma(j) has k parts.at n=44A320537