A180182 - cp's OEIS frontend

A180182 Triangle read by rows: T(n,k) is the number of compositions of n without 7's and having k parts; 1 <= k <= n.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	3
10	1
11	1
12	4
13	6
14	4
15	1
16	1
17	5
18	10
19	10
20	5
21	1
22	0
23	6
24	15
25	20
26	15
27	6
28	1
29	1
30	5
31	21
32	35
33	35
34	21
35	7
36	1
37	1
38	6
39	25
40	56
41	70
42	56
43	28
44	8
45	1
46	1
47	7
48	30
49	80
50	126
51	126
52	84
53	36
54	9
55	1
56	1
57	8
58	36
59	108
60	205
61	252
62	210
63	120
64	45
65	10
66	1
67	1
68	9
69	43
70	141
71	310
72	456
73	462
74	330
75	165
76	55
77	11
78	1

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 1, 0, 6, 15, 20, 15, 6, 1, 1, 5, 21, 35, 35, 21, 7, 1, 1, 6, 25, 56, 70, 56, 28, 8, 1, 1, 7, 30, 80, 126, 126, 84, 36, 9, 1, 1, 8, 36, 108, 205, 252, 210, 120, 45, 10, 1, 1, 9, 43, 141, 310, 456, 462, 330, 165, 55, 11, 1]

cp's OEIS Frontend

A180182 Triangle read by rows: T(n,k) is the number of compositions of n without 7's and having k parts; 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	3
10	1
11	1
12	4
13	6
14	4
15	1
16	1
17	5
18	10
19	10
20	5
21	1
22	0
23	6
24	15
25	20
26	15
27	6
28	1
29	1
30	5
31	21
32	35
33	35
34	21
35	7
36	1
37	1
38	6
39	25
40	56
41	70
42	56
43	28
44	8
45	1
46	1
47	7
48	30
49	80
50	126
51	126
52	84
53	36
54	9
55	1
56	1
57	8
58	36
59	108
60	205
61	252
62	210
63	120
64	45
65	10
66	1
67	1
68	9
69	43
70	141
71	310
72	456
73	462
74	330
75	165
76	55
77	11
78	1

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	3
10	1
11	1
12	4
13	6
14	4
15	1
16	1
17	5
18	10
19	10
20	5
21	1
22	0
23	6
24	15
25	20
26	15
27	6
28	1
29	1
30	5
31	21
32	35
33	35
34	21
35	7
36	1
37	1
38	6
39	25
40	56
41	70
42	56
43	28
44	8
45	1
46	1
47	7
48	30
49	80
50	126
51	126
52	84
53	36
54	9
55	1
56	1
57	8
58	36
59	108
60	205
61	252
62	210
63	120
64	45
65	10
66	1
67	1
68	9
69	43
70	141
71	310
72	456
73	462
74	330
75	165
76	55
77	11
78	1

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	3
9	3
10	1
11	1
12	4
13	6
14	4
15	1
16	1
17	5
18	10
19	10
20	5
21	1
22	0
23	6
24	15
25	20
26	15
27	6
28	1
29	1
30	5
31	21
32	35
33	35
34	21
35	7
36	1
37	1
38	6
39	25
40	56
41	70
42	56
43	28
44	8
45	1
46	1
47	7
48	30
49	80
50	126
51	126
52	84
53	36
54	9
55	1
56	1
57	8
58	36
59	108
60	205
61	252
62	210
63	120
64	45
65	10
66	1
67	1
68	9
69	43
70	141
71	310
72	456
73	462
74	330
75	165
76	55
77	11
78	1