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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.

A106127 Numbers k such that k-th semiprime == 2 (mod k).

Table of values

n a(n)
1 1
2 2
3 4
4 39
5 51
6 52
7 71
8 6920
9 613377
10 613381
11 613405
12 613433
13 613437
14 613449
15 613455
16 613536
17 613537
18 613548
19 613557
20 613569
21 613581
22 613583
23 613587
24 613588
25 613608
26 613613
27 58155550
28 58155570
29 6384425447
30 6384425465
31 6384425505
32 6384425531
33 6384425567

List of values

[1, 2, 4, 39, 51, 52, 71, 6920, 613377, 613381, 613405, 613433, 613437, 613449, 613455, 613536, 613537, 613548, 613557, 613569, 613581, 613583, 613587, 613588, 613608, 613613, 58155550, 58155570, 6384425447, 6384425465, 6384425505, 6384425531, 6384425567]

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

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