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.

A227031 Odd primes such that the previous prime is not the larger part of a twin prime pair.

Table of values

n a(n)
1 3
2 5
3 13
4 19
5 29
6 31
7 41
8 43
9 53
10 59
11 61
12 71
13 73
14 83
15 89
16 97
17 101
18 103
19 109
20 127
21 131
22 137
23 139
24 151
25 163
26 167
27 173
28 179
29 181
30 193
31 199
32 223
33 227
34 229
35 239
36 241
37 257
38 263
39 269
40 271
41 281
42 283
43 307
44 311
45 313
46 331
47 337
48 347
49 349
50 359
51 367
52 373
53 379
54 383
55 389
56 397
57 401
58 409
59 419
60 421

List of values

[3, 5, 13, 19, 29, 31, 41, 43, 53, 59, 61, 71, 73, 83, 89, 97, 101, 103, 109, 127, 131, 137, 139, 151, 163, 167, 173, 179, 181, 193, 199, 223, 227, 229, 239, 241, 257, 263, 269, 271, 281, 283, 307, 311, 313, 331, 337, 347, 349, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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