A308219 - cp's OEIS frontend

A308219 Number of Egyptian fractions of denominator n which are the sum of 2 unit fractions.

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

[2, 4, 5, 7, 6, 10, 6, 11, 10, 12, 8, 17, 6, 13, 14, 16, 8, 20, 8, 21, 17, 14, 10, 27, 12, 15, 18, 23, 10, 29, 8, 23, 18, 17, 20, 34, 6, 17, 20, 33, 10, 34, 8, 25, 28, 17, 12, 41, 14, 27, 20, 27, 10, 35, 24, 36, 21, 18, 14, 51, 6, 18, 33, 32, 22, 36, 8, 30, 25, 39, 14, 54, 6, 17, 33, 30, 25, 39, 12, 49, 28, 18, 14, 60, 22, 19, 25, 39, 14, 58, 20, 29, 21, 21, 24, 59, 8, 32, 36, 48]

cp's OEIS Frontend

A308219 Number of Egyptian fractions of denominator n which are the sum of 2 unit fractions.

Table of values

List of values

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

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

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