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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.

A033221 Primes of form x^2+31*y^2.

Table of values

n a(n)
1 31
2 47
3 67
4 131
5 149
6 173
7 227
8 283
9 293
10 349
11 379
12 431
13 521
14 577
15 607
16 617
17 653
18 811
19 839
20 853
21 857
22 919
23 937
24 971
25 1031
26 1063
27 1117
28 1187
29 1213
30 1237
31 1259
32 1303
33 1327
34 1451
35 1493
36 1523
37 1559
38 1583
39 1619
40 1663
41 1721
42 1723
43 1741
44 1879
45 1931
46 1973
47 1993
48 2003
49 2017
50 2153
51 2273
52 2333
53 2341
54 2521
55 2531
56 2539
57 2543
58 2609
59 2707
60 2711
61 2713
62 2767
63 2797

List of values

[31, 47, 67, 131, 149, 173, 227, 283, 293, 349, 379, 431, 521, 577, 607, 617, 653, 811, 839, 853, 857, 919, 937, 971, 1031, 1063, 1117, 1187, 1213, 1237, 1259, 1303, 1327, 1451, 1493, 1523, 1559, 1583, 1619, 1663, 1721, 1723, 1741, 1879, 1931, 1973, 1993, 2003, 2017, 2153, 2273, 2333, 2341, 2521, 2531, 2539, 2543, 2609, 2707, 2711, 2713, 2767, 2797]

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