A270429 - cp's OEIS frontend

A270429 Minimal total number of unit fractions required to sum up all fractions 1/n, 2/n, ..., n/n.

n	a(n)
1	1
2	2
3	4
4	5
5	9
6	8
7	15
8	13
9	17
10	18
11	28
12	19
13	34
14	30
15	31
16	33
17	48
18	34
19	54
20	39
21	47
22	56
23	69
24	45
25	67
26	68
27	67
28	63
29	91
30	62
31	97
32	77
33	88
34	96
35	91
36	75
37	121
38	108
39	106
40	89
41	137
42	94
43	144
44	115
45	111
46	138
47	159
48	105
49	149
50	134
51	147
52	141
53	181
54	134
55	155
56	139
57	168
58	182
59	205
60	131

[1, 2, 4, 5, 9, 8, 15, 13, 17, 18, 28, 19, 34, 30, 31, 33, 48, 34, 54, 39, 47, 56, 69, 45, 67, 68, 67, 63, 91, 62, 97, 77, 88, 96, 91, 75, 121, 108, 106, 89, 137, 94, 144, 115, 111, 138, 159, 105, 149, 134, 147, 141, 181, 134, 155, 139, 168, 182, 205, 131]

cp's OEIS Frontend

A270429 Minimal total number of unit fractions required to sum up all fractions 1/n, 2/n, ..., n/n.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	9
6	8
7	15
8	13
9	17
10	18
11	28
12	19
13	34
14	30
15	31
16	33
17	48
18	34
19	54
20	39
21	47
22	56
23	69
24	45
25	67
26	68
27	67
28	63
29	91
30	62
31	97
32	77
33	88
34	96
35	91
36	75
37	121
38	108
39	106
40	89
41	137
42	94
43	144
44	115
45	111
46	138
47	159
48	105
49	149
50	134
51	147
52	141
53	181
54	134
55	155
56	139
57	168
58	182
59	205
60	131

n	a(n)
1	1
2	2
3	4
4	5
5	9
6	8
7	15
8	13
9	17
10	18
11	28
12	19
13	34
14	30
15	31
16	33
17	48
18	34
19	54
20	39
21	47
22	56
23	69
24	45
25	67
26	68
27	67
28	63
29	91
30	62
31	97
32	77
33	88
34	96
35	91
36	75
37	121
38	108
39	106
40	89
41	137
42	94
43	144
44	115
45	111
46	138
47	159
48	105
49	149
50	134
51	147
52	141
53	181
54	134
55	155
56	139
57	168
58	182
59	205
60	131

n	a(n)
1	1
2	2
3	4
4	5
5	9
6	8
7	15
8	13
9	17
10	18
11	28
12	19
13	34
14	30
15	31
16	33
17	48
18	34
19	54
20	39
21	47
22	56
23	69
24	45
25	67
26	68
27	67
28	63
29	91
30	62
31	97
32	77
33	88
34	96
35	91
36	75
37	121
38	108
39	106
40	89
41	137
42	94
43	144
44	115
45	111
46	138
47	159
48	105
49	149
50	134
51	147
52	141
53	181
54	134
55	155
56	139
57	168
58	182
59	205
60	131