A331605 - cp's OEIS frontend

A331605 Positive integers k such that k = (a^2 + b^2 + c^2)/(ab + bc + c*a) for some integers a, b and c.

n	a(n)
1	1
2	2
3	5
4	10
5	14
6	17
7	26
8	29
9	37
10	50
11	62
12	65
13	74
14	77
15	82
16	98
17	101
18	109
19	110
20	122
21	125
22	145
23	149
24	170
25	173
26	190
27	194
28	197
29	209
30	226
31	242
32	245
33	257
34	269
35	290
36	302
37	305
38	314
39	325
40	334
41	362
42	365
43	398
44	401
45	410
46	434
47	437
48	442
49	469
50	482
51	485
52	497
53	509
54	514
55	530
56	554
57	557

[1, 2, 5, 10, 14, 17, 26, 29, 37, 50, 62, 65, 74, 77, 82, 98, 101, 109, 110, 122, 125, 145, 149, 170, 173, 190, 194, 197, 209, 226, 242, 245, 257, 269, 290, 302, 305, 314, 325, 334, 362, 365, 398, 401, 410, 434, 437, 442, 469, 482, 485, 497, 509, 514, 530, 554, 557]

cp's OEIS Frontend

A331605 Positive integers k such that k = (a^2 + b^2 + c^2)/(ab + bc + c*a) for some integers a, b and c.

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	10
5	14
6	17
7	26
8	29
9	37
10	50
11	62
12	65
13	74
14	77
15	82
16	98
17	101
18	109
19	110
20	122
21	125
22	145
23	149
24	170
25	173
26	190
27	194
28	197
29	209
30	226
31	242
32	245
33	257
34	269
35	290
36	302
37	305
38	314
39	325
40	334
41	362
42	365
43	398
44	401
45	410
46	434
47	437
48	442
49	469
50	482
51	485
52	497
53	509
54	514
55	530
56	554
57	557

n	a(n)
1	1
2	2
3	5
4	10
5	14
6	17
7	26
8	29
9	37
10	50
11	62
12	65
13	74
14	77
15	82
16	98
17	101
18	109
19	110
20	122
21	125
22	145
23	149
24	170
25	173
26	190
27	194
28	197
29	209
30	226
31	242
32	245
33	257
34	269
35	290
36	302
37	305
38	314
39	325
40	334
41	362
42	365
43	398
44	401
45	410
46	434
47	437
48	442
49	469
50	482
51	485
52	497
53	509
54	514
55	530
56	554
57	557

cp's OEIS Frontend

A331605 Positive integers k such that k = (a^2 + b^2 + c^2)/(a*b + b*c + c*a) for some integers a, b and c.

Table of values

List of values

A331605 Positive integers k such that k = (a^2 + b^2 + c^2)/(ab + bc + c*a) for some integers a, b and c.

n	a(n)
1	1
2	2
3	5
4	10
5	14
6	17
7	26
8	29
9	37
10	50
11	62
12	65
13	74
14	77
15	82
16	98
17	101
18	109
19	110
20	122
21	125
22	145
23	149
24	170
25	173
26	190
27	194
28	197
29	209
30	226
31	242
32	245
33	257
34	269
35	290
36	302
37	305
38	314
39	325
40	334
41	362
42	365
43	398
44	401
45	410
46	434
47	437
48	442
49	469
50	482
51	485
52	497
53	509
54	514
55	530
56	554
57	557