cp's OEIS Frontend

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.

A263466 Least k such that prime(n) is the smallest prime p for which k^2 + p^2 is also prime, or 0 if none.

Table of values

n a(n)
1 1
2 2
3 4
4 12
5 14
6 48
7 178
8 44
9 152
10 66
11 224
12 272
13 496
14 322
15 408
16 2068
17 114
18 354
19 592
20 584
21 3192
22 406
23 2708
24 774
25 2658
26 394
27 4102
28 2432
29 3346
30 2562
31 8722
32 4424
33 9562
34 2986
35 6856
36 1714
37 21318
38 5858
39 7568
40 16272
41 7576
42 4864
43 6244
44 29262
45 29992
46 9996
47 10406
48 58348
49 16872
50 11384
51 12738
52 22126
53 9946
54 24214
55 81682
56 46082
57 74616
58 88016
59 6788
60 30856
61 21542
62 38672
63 131492
64 62874
65 75358
66 95262
67 39554
68 83552
69 65022
70 73664

List of values

[1, 2, 4, 12, 14, 48, 178, 44, 152, 66, 224, 272, 496, 322, 408, 2068, 114, 354, 592, 584, 3192, 406, 2708, 774, 2658, 394, 4102, 2432, 3346, 2562, 8722, 4424, 9562, 2986, 6856, 1714, 21318, 5858, 7568, 16272, 7576, 4864, 6244, 29262, 29992, 9996, 10406, 58348, 16872, 11384, 12738, 22126, 9946, 24214, 81682, 46082, 74616, 88016, 6788, 30856, 21542, 38672, 131492, 62874, 75358, 95262, 39554, 83552, 65022, 73664]