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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.

A223881 Denominators in the expression m!/(prime(m-1)+1) for m > 1 such that this expression is not an integer.

Table of values

n a(n)
1 3
2 2
3 19
4 31
5 37
6 79
7 41
8 97
9 53
10 139
11 71
12 157
13 83
14 199
15 211
16 229
17 131
18 271
19 137
20 307
21 331
22 337
23 173
24 367
25 379
26 197
27 439
28 227
29 499
30 263
31 547
32 281
33 577
34 293
35 197
36 199
37 601
38 607
39 619
40 661
41 227
42 229
43 691
44 239
45 727
46 383
47 269
48 811
49 829
50 283
51 431
52 877
53 467
54 937
55 313

List of values

[3, 2, 19, 31, 37, 79, 41, 97, 53, 139, 71, 157, 83, 199, 211, 229, 131, 271, 137, 307, 331, 337, 173, 367, 379, 197, 439, 227, 499, 263, 547, 281, 577, 293, 197, 199, 601, 607, 619, 661, 227, 229, 691, 239, 727, 383, 269, 811, 829, 283, 431, 877, 467, 937, 313]

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

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