445896

Appears in sequences

• The number of ways of putting n labeled items into k labeled boxes so that each box receives at least 2 objects.at n=32A200091
• Number of doubly-surjective functions f:[n]->[3].at n=6A224541
• Solution of the complementary equation a(n) = 2*a(n-2) - b(n-1) + n, where a(0) = 4, a(1) = 5, b(0) = 1, and (a(n)) and (b(n)) are increasing complementary sequences.at n=35A295068