A368821 - cp's OEIS frontend

A368821 Number of compositions of n into 2 refactorable parts.

n	a(n)
1	0
2	1
3	2
4	1
5	0
6	0
7	0
8	0
9	2
10	4
11	2
12	0
13	2
14	2
15	0
16	1
17	2
18	1
19	2
20	4
21	2
22	0
23	0
24	1
25	2
26	4
27	2
28	0
29	0
30	2
31	0
32	2
33	2
34	0
35	0
36	3
37	2
38	2
39	0
40	0
41	2
42	4
43	0
44	2
45	2
46	0
47	0
48	5
49	2
50	0
51	0
52	2
53	0
54	2
55	0
56	0
57	2
58	4
59	0
60	2
61	2
62	2
63	0
64	4
65	2
66	0
67	0
68	4
69	2
70	0
71	0
72	3
73	2
74	4
75	0
76	2
77	0
78	2
79	0
80	5
81	4
82	2
83	0
84	4
85	2
86	2
87	0
88	2
89	4
90	4
91	0
92	6
93	2
94	0
95	0
96	10
97	4

[0, 1, 2, 1, 0, 0, 0, 0, 2, 4, 2, 0, 2, 2, 0, 1, 2, 1, 2, 4, 2, 0, 0, 1, 2, 4, 2, 0, 0, 2, 0, 2, 2, 0, 0, 3, 2, 2, 0, 0, 2, 4, 0, 2, 2, 0, 0, 5, 2, 0, 0, 2, 0, 2, 0, 0, 2, 4, 0, 2, 2, 2, 0, 4, 2, 0, 0, 4, 2, 0, 0, 3, 2, 4, 0, 2, 0, 2, 0, 5, 4, 2, 0, 4, 2, 2, 0, 2, 4, 4, 0, 6, 2, 0, 0, 10, 4]

cp's OEIS Frontend

A368821 Number of compositions of n into 2 refactorable parts.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	1
5	0
6	0
7	0
8	0
9	2
10	4
11	2
12	0
13	2
14	2
15	0
16	1
17	2
18	1
19	2
20	4
21	2
22	0
23	0
24	1
25	2
26	4
27	2
28	0
29	0
30	2
31	0
32	2
33	2
34	0
35	0
36	3
37	2
38	2
39	0
40	0
41	2
42	4
43	0
44	2
45	2
46	0
47	0
48	5
49	2
50	0
51	0
52	2
53	0
54	2
55	0
56	0
57	2
58	4
59	0
60	2
61	2
62	2
63	0
64	4
65	2
66	0
67	0
68	4
69	2
70	0
71	0
72	3
73	2
74	4
75	0
76	2
77	0
78	2
79	0
80	5
81	4
82	2
83	0
84	4
85	2
86	2
87	0
88	2
89	4
90	4
91	0
92	6
93	2
94	0
95	0
96	10
97	4

n	a(n)
1	0
2	1
3	2
4	1
5	0
6	0
7	0
8	0
9	2
10	4
11	2
12	0
13	2
14	2
15	0
16	1
17	2
18	1
19	2
20	4
21	2
22	0
23	0
24	1
25	2
26	4
27	2
28	0
29	0
30	2
31	0
32	2
33	2
34	0
35	0
36	3
37	2
38	2
39	0
40	0
41	2
42	4
43	0
44	2
45	2
46	0
47	0
48	5
49	2
50	0
51	0
52	2
53	0
54	2
55	0
56	0
57	2
58	4
59	0
60	2
61	2
62	2
63	0
64	4
65	2
66	0
67	0
68	4
69	2
70	0
71	0
72	3
73	2
74	4
75	0
76	2
77	0
78	2
79	0
80	5
81	4
82	2
83	0
84	4
85	2
86	2
87	0
88	2
89	4
90	4
91	0
92	6
93	2
94	0
95	0
96	10
97	4

n	a(n)
1	0
2	1
3	2
4	1
5	0
6	0
7	0
8	0
9	2
10	4
11	2
12	0
13	2
14	2
15	0
16	1
17	2
18	1
19	2
20	4
21	2
22	0
23	0
24	1
25	2
26	4
27	2
28	0
29	0
30	2
31	0
32	2
33	2
34	0
35	0
36	3
37	2
38	2
39	0
40	0
41	2
42	4
43	0
44	2
45	2
46	0
47	0
48	5
49	2
50	0
51	0
52	2
53	0
54	2
55	0
56	0
57	2
58	4
59	0
60	2
61	2
62	2
63	0
64	4
65	2
66	0
67	0
68	4
69	2
70	0
71	0
72	3
73	2
74	4
75	0
76	2
77	0
78	2
79	0
80	5
81	4
82	2
83	0
84	4
85	2
86	2
87	0
88	2
89	4
90	4
91	0
92	6
93	2
94	0
95	0
96	10
97	4