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.

A131101 Numbers that when added it to their prime factors +1 the result is a prime number, member of A131102.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 11
6 23
7 27
8 29
9 30
10 32
11 36
12 41
13 53
14 60
15 66
16 75
17 78
18 83
19 89
20 113
21 114
22 117
23 130
24 131
25 132
26 138
27 140
28 171
29 173
30 175
31 179
32 186
33 191
34 204
35 220
36 233
37 239
38 240
39 246
40 251
41 255
42 258
43 260
44 276
45 279
46 281
47 285
48 286
49 293
50 308
51 310
52 325
53 338
54 340
55 354
56 359
57 363

List of values

[1, 2, 3, 5, 11, 23, 27, 29, 30, 32, 36, 41, 53, 60, 66, 75, 78, 83, 89, 113, 114, 117, 130, 131, 132, 138, 140, 171, 173, 175, 179, 186, 191, 204, 220, 233, 239, 240, 246, 251, 255, 258, 260, 276, 279, 281, 285, 286, 293, 308, 310, 325, 338, 340, 354, 359, 363]

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

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