Number of ways of placing n labeled balls into n unlabeled (but 3-colored) boxes.
A027710
Number of ways of placing n labeled balls into n unlabeled (but 3-colored) boxes.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =57a(4) =309a(5) =1866a(6) =12351a(7) =88563a(8) =681870a(9) =5597643a(10) =48718569a(11) =447428856a(12) =4318854429a(13) =43666895343a(14) =461101962108
External references
- oeis: A027710