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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A071958 Numbers k such that Sum_{i=0..k} K(k, i) < 0 where K(x, y) is the Kronecker symbol (x/y).

Table of values

n a(n)
1 67
2 99
3 115
4 147
5 163
6 187
7 267
8 275
9 283
10 307
11 315
12 355
13 379
14 403
15 427
16 475
17 507
18 523
19 531
20 595
21 619
22 643
23 675
24 747
25 763
26 787
27 883
28 907
29 931
30 947
31 955
32 975
33 1003
34 1027
35 1107
36 1123
37 1147
38 1179
39 1203
40 1267
41 1275
42 1347
43 1363
44 1387
45 1395
46 1435
47 1467
48 1475

List of values

[67, 99, 115, 147, 163, 187, 267, 275, 283, 307, 315, 355, 379, 403, 427, 475, 507, 523, 531, 595, 619, 643, 675, 747, 763, 787, 883, 907, 931, 947, 955, 975, 1003, 1027, 1107, 1123, 1147, 1179, 1203, 1267, 1275, 1347, 1363, 1387, 1395, 1435, 1467, 1475]