A078803 - cp's OEIS frontend

A078803 Triangular array T given by T(n,k) = number of compositions of n into k parts, each in the set {1,2,3}.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	0
8	3
9	3
10	1
11	0
12	2
13	6
14	4
15	1
16	0
17	1
18	7
19	10
20	5
21	1
22	0
23	0
24	6
25	16
26	15
27	6
28	1
29	0
30	0
31	3
32	19
33	30
34	21
35	7
36	1
37	0
38	0
39	1
40	16
41	45
42	50
43	28
44	8
45	1
46	0
47	0
48	0
49	10
50	51
51	90
52	77
53	36
54	9
55	1
56	0
57	0
58	0
59	4
60	45
61	126
62	161
63	112
64	45
65	10
66	1
67	0
68	0
69	0
70	1
71	30
72	141
73	266
74	266
75	156
76	55
77	11
78	1
79	0
80	0
81	0
82	0
83	15
84	126

[1, 1, 1, 1, 2, 1, 0, 3, 3, 1, 0, 2, 6, 4, 1, 0, 1, 7, 10, 5, 1, 0, 0, 6, 16, 15, 6, 1, 0, 0, 3, 19, 30, 21, 7, 1, 0, 0, 1, 16, 45, 50, 28, 8, 1, 0, 0, 0, 10, 51, 90, 77, 36, 9, 1, 0, 0, 0, 4, 45, 126, 161, 112, 45, 10, 1, 0, 0, 0, 1, 30, 141, 266, 266, 156, 55, 11, 1, 0, 0, 0, 0, 15, 126]

cp's OEIS Frontend

A078803 Triangular array T given by T(n,k) = number of compositions of n into k parts, each in the set {1,2,3}.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	0
8	3
9	3
10	1
11	0
12	2
13	6
14	4
15	1
16	0
17	1
18	7
19	10
20	5
21	1
22	0
23	0
24	6
25	16
26	15
27	6
28	1
29	0
30	0
31	3
32	19
33	30
34	21
35	7
36	1
37	0
38	0
39	1
40	16
41	45
42	50
43	28
44	8
45	1
46	0
47	0
48	0
49	10
50	51
51	90
52	77
53	36
54	9
55	1
56	0
57	0
58	0
59	4
60	45
61	126
62	161
63	112
64	45
65	10
66	1
67	0
68	0
69	0
70	1
71	30
72	141
73	266
74	266
75	156
76	55
77	11
78	1
79	0
80	0
81	0
82	0
83	15
84	126

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	0
8	3
9	3
10	1
11	0
12	2
13	6
14	4
15	1
16	0
17	1
18	7
19	10
20	5
21	1
22	0
23	0
24	6
25	16
26	15
27	6
28	1
29	0
30	0
31	3
32	19
33	30
34	21
35	7
36	1
37	0
38	0
39	1
40	16
41	45
42	50
43	28
44	8
45	1
46	0
47	0
48	0
49	10
50	51
51	90
52	77
53	36
54	9
55	1
56	0
57	0
58	0
59	4
60	45
61	126
62	161
63	112
64	45
65	10
66	1
67	0
68	0
69	0
70	1
71	30
72	141
73	266
74	266
75	156
76	55
77	11
78	1
79	0
80	0
81	0
82	0
83	15
84	126

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	0
8	3
9	3
10	1
11	0
12	2
13	6
14	4
15	1
16	0
17	1
18	7
19	10
20	5
21	1
22	0
23	0
24	6
25	16
26	15
27	6
28	1
29	0
30	0
31	3
32	19
33	30
34	21
35	7
36	1
37	0
38	0
39	1
40	16
41	45
42	50
43	28
44	8
45	1
46	0
47	0
48	0
49	10
50	51
51	90
52	77
53	36
54	9
55	1
56	0
57	0
58	0
59	4
60	45
61	126
62	161
63	112
64	45
65	10
66	1
67	0
68	0
69	0
70	1
71	30
72	141
73	266
74	266
75	156
76	55
77	11
78	1
79	0
80	0
81	0
82	0
83	15
84	126