A018892 - cp's OEIS frontend

A018892 Number of ways to write 1/n as a sum of exactly 2 unit fractions.

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

[1, 2, 2, 3, 2, 5, 2, 4, 3, 5, 2, 8, 2, 5, 5, 5, 2, 8, 2, 8, 5, 5, 2, 11, 3, 5, 4, 8, 2, 14, 2, 6, 5, 5, 5, 13, 2, 5, 5, 11, 2, 14, 2, 8, 8, 5, 2, 14, 3, 8, 5, 8, 2, 11, 5, 11, 5, 5, 2, 23, 2, 5, 8, 7, 5, 14, 2, 8, 5, 14, 2, 18, 2, 5, 8, 8, 5, 14, 2, 14, 5, 5, 2, 23, 5, 5, 5, 11, 2, 23, 5, 8, 5, 5, 5, 17, 2, 8, 8]

cp's OEIS Frontend

A018892 Number of ways to write 1/n as a sum of exactly 2 unit fractions.

Table of values

List of values

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

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

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