A264826 - cp's OEIS frontend

A264826 Primitive Eisenstein triples: (a,b,c) in lexicographic order such that a^2 + b^2 - a*b - c^2 = 0, a < b < c, and gcd(a, b) = 1.

n	a(n)
1	3
2	7
3	8
4	5
5	7
6	8
7	5
8	19
9	21
10	7
11	13
12	15
13	7
14	37
15	40
16	8
17	13
18	15
19	9
20	61
21	65
22	11
23	31
24	35
25	11
26	91
27	96
28	13
29	43
30	48
31	13
32	127
33	133
34	15
35	169
36	176
37	16
38	19
39	21
40	16
41	49
42	55
43	17
44	73
45	80
46	17
47	217
48	225
49	19
50	91
51	99
52	19
53	271
54	280
55	21
56	331
57	341
58	23
59	133
60	143
61	23
62	397
63	408

[3, 7, 8, 5, 7, 8, 5, 19, 21, 7, 13, 15, 7, 37, 40, 8, 13, 15, 9, 61, 65, 11, 31, 35, 11, 91, 96, 13, 43, 48, 13, 127, 133, 15, 169, 176, 16, 19, 21, 16, 49, 55, 17, 73, 80, 17, 217, 225, 19, 91, 99, 19, 271, 280, 21, 331, 341, 23, 133, 143, 23, 397, 408]

cp's OEIS Frontend

A264826 Primitive Eisenstein triples: (a,b,c) in lexicographic order such that a^2 + b^2 - a*b - c^2 = 0, a < b < c, and gcd(a, b) = 1.

Table of values

List of values

n	a(n)
1	3
2	7
3	8
4	5
5	7
6	8
7	5
8	19
9	21
10	7
11	13
12	15
13	7
14	37
15	40
16	8
17	13
18	15
19	9
20	61
21	65
22	11
23	31
24	35
25	11
26	91
27	96
28	13
29	43
30	48
31	13
32	127
33	133
34	15
35	169
36	176
37	16
38	19
39	21
40	16
41	49
42	55
43	17
44	73
45	80
46	17
47	217
48	225
49	19
50	91
51	99
52	19
53	271
54	280
55	21
56	331
57	341
58	23
59	133
60	143
61	23
62	397
63	408

n	a(n)
1	3
2	7
3	8
4	5
5	7
6	8
7	5
8	19
9	21
10	7
11	13
12	15
13	7
14	37
15	40
16	8
17	13
18	15
19	9
20	61
21	65
22	11
23	31
24	35
25	11
26	91
27	96
28	13
29	43
30	48
31	13
32	127
33	133
34	15
35	169
36	176
37	16
38	19
39	21
40	16
41	49
42	55
43	17
44	73
45	80
46	17
47	217
48	225
49	19
50	91
51	99
52	19
53	271
54	280
55	21
56	331
57	341
58	23
59	133
60	143
61	23
62	397
63	408

n	a(n)
1	3
2	7
3	8
4	5
5	7
6	8
7	5
8	19
9	21
10	7
11	13
12	15
13	7
14	37
15	40
16	8
17	13
18	15
19	9
20	61
21	65
22	11
23	31
24	35
25	11
26	91
27	96
28	13
29	43
30	48
31	13
32	127
33	133
34	15
35	169
36	176
37	16
38	19
39	21
40	16
41	49
42	55
43	17
44	73
45	80
46	17
47	217
48	225
49	19
50	91
51	99
52	19
53	271
54	280
55	21
56	331
57	341
58	23
59	133
60	143
61	23
62	397
63	408