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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.

A222007 a(n+1) is the smallest prime factor of any (Product_{k=1..j} a(k)) + (Product_{k=j+1..n} a(k)) for j=0..n.

Table of values

n a(n)
1 2
2 3
3 5
4 11
5 41
6 7
7 23
8 17
9 19
10 13
11 37
12 53
13 73
14 151
15 29
16 43
17 31
18 59
19 71
20 47
21 79
22 61
23 107
24 83
25 103
26 163
27 109
28 89
29 101
30 113
31 67
32 97
33 137
34 131
35 139
36 127
37 229
38 149
39 173
40 227
41 179
42 239
43 181
44 191
45 193
46 167
47 197
48 241
49 277
50 157
51 233
52 211
53 397
54 257
55 271
56 283
57 251
58 281
59 313
60 269
61 347
62 349
63 317
64 263
65 379
66 223
67 367
68 199
69 353
70 401
71 421
72 463
73 293
74 337
75 383
76 389
77 331
78 431
79 359
80 443

List of values

[2, 3, 5, 11, 41, 7, 23, 17, 19, 13, 37, 53, 73, 151, 29, 43, 31, 59, 71, 47, 79, 61, 107, 83, 103, 163, 109, 89, 101, 113, 67, 97, 137, 131, 139, 127, 229, 149, 173, 227, 179, 239, 181, 191, 193, 167, 197, 241, 277, 157, 233, 211, 397, 257, 271, 283, 251, 281, 313, 269, 347, 349, 317, 263, 379, 223, 367, 199, 353, 401, 421, 463, 293, 337, 383, 389, 331, 431, 359, 443]