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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.

A290507 Sums and differences of products of the first n primes partitioned into two disjoint parts.

Table of values

n a(n)
1 1
2 5
3 7
4 11
5 13
6 17
7 23
8 29
9 31
10 37
11 41
12 47
13 67
14 73
15 83
16 89
17 97
18 101
19 103
20 107
21 127
22 131
23 139
24 151
25 157
26 163
27 169
28 179
29 181
30 199
31 221
32 227
33 239
34 241
35 263
36 307
37 313
38 323
39 337
40 347
41 349
42 353
43 359
44 361
45 379
46 383
47 389
48 391
49 397
50 421
51 457
52 463
53 467
54 491
55 499
56 521
57 527
58 601
59 619
60 643
61 653
62 667
63 673
64 709
65 713

List of values

[1, 5, 7, 11, 13, 17, 23, 29, 31, 37, 41, 47, 67, 73, 83, 89, 97, 101, 103, 107, 127, 131, 139, 151, 157, 163, 169, 179, 181, 199, 221, 227, 239, 241, 263, 307, 313, 323, 337, 347, 349, 353, 359, 361, 379, 383, 389, 391, 397, 421, 457, 463, 467, 491, 499, 521, 527, 601, 619, 643, 653, 667, 673, 709, 713]

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

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