90756

Appears in sequences

• a(n) = n*(2*n^2 - 2*n + 1).at n=36A059722
• Number of self-inverse permutations p on [n] where the maximal displacement of an element equals 5.at n=14A238916
• Number of labeled hyperforests spanning n vertices without singleton edges.at n=7A304911
• Expansion of e.g.f. -LambertW(x^2/2 * (1 - exp(x))).at n=9A355181