26353376

Appears in sequences

• a(n) = n^7*(n+1)^2/2.at n=7A163277
• Denominator of Euler(n, 3/14).at n=7A182268
• Triangular array read by rows: T(n,k) is the number of elements x in {1,2,...,n} such that |(f^-1)(x)| = k over all functions f:{1,2,...,n}->{1,2,...,n}; n>=0, 0<=k<=n.at n=38A210457
• Numbers k such that k^3 is the sum of two positive 7th powers.at n=6A291829
• Triangle read by rows: T(n, k) = floor(binomial(n, k - 1) * (k - 1)^(k - 1) * k *(n - k + 1)^(n - k) / 2).at n=44A369025
• a(n) = floor(n^2 * (n - 1)^(n - 1) / 2).at n=8A369027
• Triangle read by rows: T(n, k) = floor(binomial(n, k - 1) * (k - 1)^(k - 1) * n * (n - k + 1)^(n - k) / 2).at n=44A369072