A213742 - cp's OEIS frontend

A213742 Triangle of numbers C^(3)(n,k) of combinations with repetitions from n different elements over k for each of them not more than three appearances allowed.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	1
7	3
8	6
9	10
10	1
11	4
12	10
13	20
14	31
15	1
16	5
17	15
18	35
19	65
20	101
21	1
22	6
23	21
24	56
25	120
26	216
27	336
28	1
29	7
30	28
31	84
32	203
33	413
34	728
35	1128
36	1
37	8
38	36
39	120
40	322
41	728
42	1428
43	2472
44	3823
45	1
46	9
47	45
48	165
49	486
50	1206
51	2598
52	4950
53	8451
54	13051
55	1
56	10

[1, 1, 1, 1, 2, 3, 1, 3, 6, 10, 1, 4, 10, 20, 31, 1, 5, 15, 35, 65, 101, 1, 6, 21, 56, 120, 216, 336, 1, 7, 28, 84, 203, 413, 728, 1128, 1, 8, 36, 120, 322, 728, 1428, 2472, 3823, 1, 9, 45, 165, 486, 1206, 2598, 4950, 8451, 13051, 1, 10]

cp's OEIS Frontend

A213742 Triangle of numbers C^(3)(n,k) of combinations with repetitions from n different elements over k for each of them not more than three appearances allowed.

Table of values

List of values