A039911 - cp's OEIS frontend

A039911 Triangle read by rows: number of compositions of n into relatively prime summands.

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	2
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	10
19	9
20	2
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	7
31	21
32	35
33	34
34	18
35	4
36	0
37	1
38	8
39	28
40	56
41	70
42	56
43	27
44	6
45	0
46	1
47	9
48	36
49	84
50	126
51	125
52	80
53	30
54	4
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0
67	1
68	11
69	55
70	165
71	330
72	462
73	461
74	325
75	154
76	42
77	4
78	0
79	1
80	12
81	66
82	220
83	495
84	792
85	924
86	792
87	495
88	220
89	66
90	12
91	0

[1, 1, 0, 1, 2, 0, 1, 3, 2, 0, 1, 4, 6, 4, 0, 1, 5, 10, 9, 2, 0, 1, 6, 15, 20, 15, 6, 0, 1, 7, 21, 35, 34, 18, 4, 0, 1, 8, 28, 56, 70, 56, 27, 6, 0, 1, 9, 36, 84, 126, 125, 80, 30, 4, 0, 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 0, 1, 11, 55, 165, 330, 462, 461, 325, 154, 42, 4, 0, 1, 12, 66, 220, 495, 792, 924, 792, 495, 220, 66, 12, 0]

cp's OEIS Frontend

A039911 Triangle read by rows: number of compositions of n into relatively prime summands.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	2
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	10
19	9
20	2
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	7
31	21
32	35
33	34
34	18
35	4
36	0
37	1
38	8
39	28
40	56
41	70
42	56
43	27
44	6
45	0
46	1
47	9
48	36
49	84
50	126
51	125
52	80
53	30
54	4
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0
67	1
68	11
69	55
70	165
71	330
72	462
73	461
74	325
75	154
76	42
77	4
78	0
79	1
80	12
81	66
82	220
83	495
84	792
85	924
86	792
87	495
88	220
89	66
90	12
91	0

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	2
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	10
19	9
20	2
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	7
31	21
32	35
33	34
34	18
35	4
36	0
37	1
38	8
39	28
40	56
41	70
42	56
43	27
44	6
45	0
46	1
47	9
48	36
49	84
50	126
51	125
52	80
53	30
54	4
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0
67	1
68	11
69	55
70	165
71	330
72	462
73	461
74	325
75	154
76	42
77	4
78	0
79	1
80	12
81	66
82	220
83	495
84	792
85	924
86	792
87	495
88	220
89	66
90	12
91	0

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	2
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	10
19	9
20	2
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	7
31	21
32	35
33	34
34	18
35	4
36	0
37	1
38	8
39	28
40	56
41	70
42	56
43	27
44	6
45	0
46	1
47	9
48	36
49	84
50	126
51	125
52	80
53	30
54	4
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0
67	1
68	11
69	55
70	165
71	330
72	462
73	461
74	325
75	154
76	42
77	4
78	0
79	1
80	12
81	66
82	220
83	495
84	792
85	924
86	792
87	495
88	220
89	66
90	12
91	0