A343893 - cp's OEIS frontend

A343893 Side c of integer-sided primitive triangles (a, b, c) where side a is the harmonic mean of the 2 other sides b and c, i.e., 2/a = 1/b + 1/c with b < a < c.

n	a(n)
1	6
2	15
3	20
4	35
5	28
6	42
7	45
8	63
9	88
10	77
11	66
12	72
13	117
14	99
15	104
16	91
17	130
18	110
19	165
20	120
21	143
22	204
23	187
24	170
25	156
26	153
27	221
28	247
29	195
30	228
31	266
32	209
33	190
34	238
35	210
36	273
37	285
38	231
39	255
40	368
41	336
42	345
43	304
44	322
45	391
46	272
47	299
48	276
49	425
50	357
51	450
52	323
53	400
54	414
55	513
56	350
57	325
58	342
59	475
60	459

[6, 15, 20, 35, 28, 42, 45, 63, 88, 77, 66, 72, 117, 99, 104, 91, 130, 110, 165, 120, 143, 204, 187, 170, 156, 153, 221, 247, 195, 228, 266, 209, 190, 238, 210, 273, 285, 231, 255, 368, 336, 345, 304, 322, 391, 272, 299, 276, 425, 357, 450, 323, 400, 414, 513, 350, 325, 342, 475, 459]

cp's OEIS Frontend

A343893 Side c of integer-sided primitive triangles (a, b, c) where side a is the harmonic mean of the 2 other sides b and c, i.e., 2/a = 1/b + 1/c with b < a < c.

Table of values

List of values

n	a(n)
1	6
2	15
3	20
4	35
5	28
6	42
7	45
8	63
9	88
10	77
11	66
12	72
13	117
14	99
15	104
16	91
17	130
18	110
19	165
20	120
21	143
22	204
23	187
24	170
25	156
26	153
27	221
28	247
29	195
30	228
31	266
32	209
33	190
34	238
35	210
36	273
37	285
38	231
39	255
40	368
41	336
42	345
43	304
44	322
45	391
46	272
47	299
48	276
49	425
50	357
51	450
52	323
53	400
54	414
55	513
56	350
57	325
58	342
59	475
60	459

n	a(n)
1	6
2	15
3	20
4	35
5	28
6	42
7	45
8	63
9	88
10	77
11	66
12	72
13	117
14	99
15	104
16	91
17	130
18	110
19	165
20	120
21	143
22	204
23	187
24	170
25	156
26	153
27	221
28	247
29	195
30	228
31	266
32	209
33	190
34	238
35	210
36	273
37	285
38	231
39	255
40	368
41	336
42	345
43	304
44	322
45	391
46	272
47	299
48	276
49	425
50	357
51	450
52	323
53	400
54	414
55	513
56	350
57	325
58	342
59	475
60	459

n	a(n)
1	6
2	15
3	20
4	35
5	28
6	42
7	45
8	63
9	88
10	77
11	66
12	72
13	117
14	99
15	104
16	91
17	130
18	110
19	165
20	120
21	143
22	204
23	187
24	170
25	156
26	153
27	221
28	247
29	195
30	228
31	266
32	209
33	190
34	238
35	210
36	273
37	285
38	231
39	255
40	368
41	336
42	345
43	304
44	322
45	391
46	272
47	299
48	276
49	425
50	357
51	450
52	323
53	400
54	414
55	513
56	350
57	325
58	342
59	475
60	459