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.

A317242 Positive integers having no representation of the form 1 + p1 * (1 + p2* ... * (1 + p_j)...), where [p1, ..., p_j] is a (possibly empty) list of distinct primes.

Table of values

n a(n)
1 2
2 5
3 7
4 11
5 15
6 23
7 26
8 27
9 28
10 31
11 33
12 35
13 36
14 47
15 50
16 56
17 57
18 63
19 66
20 78
21 81
22 82
23 95
24 96
25 106
26 116
27 119
28 120
29 122
30 129
31 136
32 156
33 162
34 166
35 167
36 190
37 193
38 215
39 218
40 219
41 227
42 236
43 244
44 254
45 263
46 286
47 289
48 330
49 335
50 342
51 352
52 359
53 387
54 393
55 395
56 396
57 414

List of values

[2, 5, 7, 11, 15, 23, 26, 27, 28, 31, 33, 35, 36, 47, 50, 56, 57, 63, 66, 78, 81, 82, 95, 96, 106, 116, 119, 120, 122, 129, 136, 156, 162, 166, 167, 190, 193, 215, 218, 219, 227, 236, 244, 254, 263, 286, 289, 330, 335, 342, 352, 359, 387, 393, 395, 396, 414]