748521

Appears in sequences

• Card-matching numbers (Dinner-Diner matching numbers).at n=28A059060
• Card-matching numbers (Dinner-Diner matching numbers).at n=28A059068
• Number of derangements of a multiset comprising 4 repeats of an n-element set.at n=4A059074
• Number of derangements of a multiset comprising n repeats of a 4-element set.at n=4A371252
• Square array read by antidiagonals: T(n,k) is the number of derangements of a multiset comprising n repeats of a k-element set.at n=40A372307
• Number of multiset permutations of {{1}^n, {2}^n, ..., {n}^n} with no fixed points.at n=4A375778