A227041 - cp's OEIS frontend

A227041 Triangle of numerators of harmonic mean of n and m, 1 <= m <= n.

n	a(n)
1	1
2	4
3	2
4	3
5	12
6	3
7	8
8	8
9	24
10	4
11	5
12	20
13	15
14	40
15	5
16	12
17	3
18	4
19	24
20	60
21	6
22	7
23	28
24	21
25	56
26	35
27	84
28	7
29	16
30	16
31	48
32	16
33	80
34	48
35	112
36	8
37	9
38	36
39	9
40	72
41	45
42	36
43	63
44	144
45	9
46	20
47	10
48	60
49	40
50	20
51	15
52	140
53	80
54	180
55	10
56	11
57	44
58	33
59	88
60	55
61	132
62	77
63	176
64	99
65	220
66	11

[1, 4, 2, 3, 12, 3, 8, 8, 24, 4, 5, 20, 15, 40, 5, 12, 3, 4, 24, 60, 6, 7, 28, 21, 56, 35, 84, 7, 16, 16, 48, 16, 80, 48, 112, 8, 9, 36, 9, 72, 45, 36, 63, 144, 9, 20, 10, 60, 40, 20, 15, 140, 80, 180, 10, 11, 44, 33, 88, 55, 132, 77, 176, 99, 220, 11]

cp's OEIS Frontend

A227041 Triangle of numerators of harmonic mean of n and m, 1 <= m <= n.

Table of values

List of values

n	a(n)
1	1
2	4
3	2
4	3
5	12
6	3
7	8
8	8
9	24
10	4
11	5
12	20
13	15
14	40
15	5
16	12
17	3
18	4
19	24
20	60
21	6
22	7
23	28
24	21
25	56
26	35
27	84
28	7
29	16
30	16
31	48
32	16
33	80
34	48
35	112
36	8
37	9
38	36
39	9
40	72
41	45
42	36
43	63
44	144
45	9
46	20
47	10
48	60
49	40
50	20
51	15
52	140
53	80
54	180
55	10
56	11
57	44
58	33
59	88
60	55
61	132
62	77
63	176
64	99
65	220
66	11

n	a(n)
1	1
2	4
3	2
4	3
5	12
6	3
7	8
8	8
9	24
10	4
11	5
12	20
13	15
14	40
15	5
16	12
17	3
18	4
19	24
20	60
21	6
22	7
23	28
24	21
25	56
26	35
27	84
28	7
29	16
30	16
31	48
32	16
33	80
34	48
35	112
36	8
37	9
38	36
39	9
40	72
41	45
42	36
43	63
44	144
45	9
46	20
47	10
48	60
49	40
50	20
51	15
52	140
53	80
54	180
55	10
56	11
57	44
58	33
59	88
60	55
61	132
62	77
63	176
64	99
65	220
66	11

n	a(n)
1	1
2	4
3	2
4	3
5	12
6	3
7	8
8	8
9	24
10	4
11	5
12	20
13	15
14	40
15	5
16	12
17	3
18	4
19	24
20	60
21	6
22	7
23	28
24	21
25	56
26	35
27	84
28	7
29	16
30	16
31	48
32	16
33	80
34	48
35	112
36	8
37	9
38	36
39	9
40	72
41	45
42	36
43	63
44	144
45	9
46	20
47	10
48	60
49	40
50	20
51	15
52	140
53	80
54	180
55	10
56	11
57	44
58	33
59	88
60	55
61	132
62	77
63	176
64	99
65	220
66	11