A285797 - cp's OEIS frontend

A285797 Number of ways to write n as an ordered sum of two numbers that are the product of an odd number of distinct primes.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	3
11	0
12	2
13	2
14	3
15	2
16	4
17	0
18	4
19	2
20	4
21	2
22	5
23	0
24	6
25	2
26	5
27	0
28	4
29	0
30	6
31	2
32	6
33	4
34	7
35	2
36	8
37	2
38	3
39	2
40	6
41	2
42	8
43	4
44	8
45	4
46	7
47	4
48	10
49	6
50	8
51	0
52	6
53	4
54	10
55	4
56	6
57	0
58	7
59	4
60	13
61	6
62	5
63	2
64	10
65	2
66	12
67	2
68	6
69	4
70	10
71	6
72	16
73	10
74	9
75	4
76	10
77	6
78	14
79	4
80	10
81	6
82	9
83	10
84	17
85	8
86	9
87	2
88	8
89	10
90	18
91	6
92	8
93	2
94	9
95	6
96	16
97	6
98	6
99	4
100	14

[0, 0, 0, 0, 1, 2, 1, 2, 2, 2, 3, 0, 2, 2, 3, 2, 4, 0, 4, 2, 4, 2, 5, 0, 6, 2, 5, 0, 4, 0, 6, 2, 6, 4, 7, 2, 8, 2, 3, 2, 6, 2, 8, 4, 8, 4, 7, 4, 10, 6, 8, 0, 6, 4, 10, 4, 6, 0, 7, 4, 13, 6, 5, 2, 10, 2, 12, 2, 6, 4, 10, 6, 16, 10, 9, 4, 10, 6, 14, 4, 10, 6, 9, 10, 17, 8, 9, 2, 8, 10, 18, 6, 8, 2, 9, 6, 16, 6, 6, 4, 14]

cp's OEIS Frontend

A285797 Number of ways to write n as an ordered sum of two numbers that are the product of an odd number of distinct primes.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	3
11	0
12	2
13	2
14	3
15	2
16	4
17	0
18	4
19	2
20	4
21	2
22	5
23	0
24	6
25	2
26	5
27	0
28	4
29	0
30	6
31	2
32	6
33	4
34	7
35	2
36	8
37	2
38	3
39	2
40	6
41	2
42	8
43	4
44	8
45	4
46	7
47	4
48	10
49	6
50	8
51	0
52	6
53	4
54	10
55	4
56	6
57	0
58	7
59	4
60	13
61	6
62	5
63	2
64	10
65	2
66	12
67	2
68	6
69	4
70	10
71	6
72	16
73	10
74	9
75	4
76	10
77	6
78	14
79	4
80	10
81	6
82	9
83	10
84	17
85	8
86	9
87	2
88	8
89	10
90	18
91	6
92	8
93	2
94	9
95	6
96	16
97	6
98	6
99	4
100	14

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	3
11	0
12	2
13	2
14	3
15	2
16	4
17	0
18	4
19	2
20	4
21	2
22	5
23	0
24	6
25	2
26	5
27	0
28	4
29	0
30	6
31	2
32	6
33	4
34	7
35	2
36	8
37	2
38	3
39	2
40	6
41	2
42	8
43	4
44	8
45	4
46	7
47	4
48	10
49	6
50	8
51	0
52	6
53	4
54	10
55	4
56	6
57	0
58	7
59	4
60	13
61	6
62	5
63	2
64	10
65	2
66	12
67	2
68	6
69	4
70	10
71	6
72	16
73	10
74	9
75	4
76	10
77	6
78	14
79	4
80	10
81	6
82	9
83	10
84	17
85	8
86	9
87	2
88	8
89	10
90	18
91	6
92	8
93	2
94	9
95	6
96	16
97	6
98	6
99	4
100	14

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	3
11	0
12	2
13	2
14	3
15	2
16	4
17	0
18	4
19	2
20	4
21	2
22	5
23	0
24	6
25	2
26	5
27	0
28	4
29	0
30	6
31	2
32	6
33	4
34	7
35	2
36	8
37	2
38	3
39	2
40	6
41	2
42	8
43	4
44	8
45	4
46	7
47	4
48	10
49	6
50	8
51	0
52	6
53	4
54	10
55	4
56	6
57	0
58	7
59	4
60	13
61	6
62	5
63	2
64	10
65	2
66	12
67	2
68	6
69	4
70	10
71	6
72	16
73	10
74	9
75	4
76	10
77	6
78	14
79	4
80	10
81	6
82	9
83	10
84	17
85	8
86	9
87	2
88	8
89	10
90	18
91	6
92	8
93	2
94	9
95	6
96	16
97	6
98	6
99	4
100	14