A292998 - cp's OEIS frontend

A292998 Number of sequences of balls colored with at most n colors such that exactly three balls are the same color as some other ball in the sequence.

n	a(n)
1	1
2	10
3	87
4	772
5	7285
6	74046
7	812875
8	9626632
9	122643657
10	1675253170
11	24449818591
12	379984902540
13	6268557335677
14	109443030279142
15	2016658652491155
16	39119860206021136
17	797013832285599505
18	17017679492994949722
19	380045072079456330727

[1, 10, 87, 772, 7285, 74046, 812875, 9626632, 122643657, 1675253170, 24449818591, 379984902540, 6268557335677, 109443030279142, 2016658652491155, 39119860206021136, 797013832285599505, 17017679492994949722, 380045072079456330727]

cp's OEIS Frontend

A292998 Number of sequences of balls colored with at most n colors such that exactly three balls are the same color as some other ball in the sequence.

Table of values

List of values