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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.

A213025 Balanced semiprimes (of order one): semiprimes which are the average of the previous semiprime and the following semiprime.

Table of values

n a(n)
1 34
2 86
3 94
4 122
5 142
6 185
7 194
8 202
9 214
10 218
11 262
12 289
13 302
14 314
15 321
16 358
17 371
18 394
19 407
20 413
21 415
22 422
23 446
24 471
25 489
26 493
27 497
28 517
29 535
30 562
31 581
32 586
33 626
34 634
35 669
36 687
37 698
38 734
39 785
40 791
41 815
42 838
43 842
44 922
45 982
46 989
47 1042
48 1057
49 1079
50 1135
51 1138

List of values

[34, 86, 94, 122, 142, 185, 194, 202, 214, 218, 262, 289, 302, 314, 321, 358, 371, 394, 407, 413, 415, 422, 446, 471, 489, 493, 497, 517, 535, 562, 581, 586, 626, 634, 669, 687, 698, 734, 785, 791, 815, 838, 842, 922, 982, 989, 1042, 1057, 1079, 1135, 1138]

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

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