58621

Appears in sequences

• a(n) = (2*n - 1)*n^2.at n=31A015237
• Numbers n such that n*phi(n-1) is a perfect square.at n=27A069069
• Number of prime pairs below 10^n having a difference of 4.at n=6A093737
• a(n) = 61*n^2.at n=31A174333
• Number of 2 X 2 matrices having all elements in {-n,..,0,..,n} with determinant = permanent.at n=15A280059
• Number of nX7 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero.at n=14A297813
• Numbers m > 1 such that every prime divisor p of m satisfies s_p(m) = p.at n=24A324458
• The eventual period of a sequence b(n, m) where b(n, 1) = 1 and the m-th term is the number of occurrences of b(n, m-1) in the list of integers from b(n, max(m-n, 1)) to b(n, m-1).at n=34A334539
• Number of 2 X 2 matrices over Z_n whose permanent equals their determinant.at n=30A345754
• Composite numbers for which A324644(n)/A324198(n) = 2 and sigma(n) == 2 (mod 4).at n=45A371082