A343895 - cp's OEIS frontend

A343895 Perimeters of integer-sided primitive triangles (a, b, c) where side a is the harmonic mean of the two other sides b and c, i.e., 2/a = 1/b + 1/c with b < a.

n	a(n)
1	13
2	37
3	47
4	71
5	73
6	107
7	121
8	143
9	177
10	181
11	183
12	191
13	239
14	241
15	249
16	253
17	291
18	299
19	337
20	347
21	359
22	409
23	421
24	429
25	431
26	433
27	491
28	517
29	503
30	529
31	537
32	541
33	563
34	579
35	587
36	649
37	659
38	661
39	671
40	743
41	753
42	759
43	767
44	769
45	781
46	789
47	793
48	831
49	851
50	897
51	863
52	913
53	923
54	933
55	937
56	947
57	971
58	1033

[13, 37, 47, 71, 73, 107, 121, 143, 177, 181, 183, 191, 239, 241, 249, 253, 291, 299, 337, 347, 359, 409, 421, 429, 431, 433, 491, 517, 503, 529, 537, 541, 563, 579, 587, 649, 659, 661, 671, 743, 753, 759, 767, 769, 781, 789, 793, 831, 851, 897, 863, 913, 923, 933, 937, 947, 971, 1033]

cp's OEIS Frontend

A343895 Perimeters of integer-sided primitive triangles (a, b, c) where side a is the harmonic mean of the two other sides b and c, i.e., 2/a = 1/b + 1/c with b < a.

Table of values

List of values