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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.

A131610 Semiprimes that are the sum of three successive semiprimes.

Table of values

n a(n)
1 25
2 33
3 39
4 58
5 93
6 123
7 134
8 146
9 155
10 177
11 185
12 253
13 278
14 295
15 358
16 362
17 417
18 446
19 478
20 538
21 566
22 597
23 614
24 698
25 749
26 766
27 794
28 898
29 917
30 982
31 998
32 1042
33 1059
34 1081
35 1149
36 1159
37 1286
38 1351
39 1393
40 1441
41 1546
42 1589
43 1623
44 1639
45 1649
46 1658
47 1718
48 1766
49 1799

List of values

[25, 33, 39, 58, 93, 123, 134, 146, 155, 177, 185, 253, 278, 295, 358, 362, 417, 446, 478, 538, 566, 597, 614, 698, 749, 766, 794, 898, 917, 982, 998, 1042, 1059, 1081, 1149, 1159, 1286, 1351, 1393, 1441, 1546, 1589, 1623, 1639, 1649, 1658, 1718, 1766, 1799]

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

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