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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.

A328664 Least super pseudoprime to base n that is not a semiprime.

Table of values

n a(n)
2 294409
3 7381
4 13981
5 342271
6 9331
7 747289
8 63
9 8
10 99
11 4921
12 1729
13 12
14 195
15 355957
16 255
17 8
18 325
19 18
20 399
21 20
22 483
23 1183
24 575
25 8
26 27
27 1729
28 27
29 28
30 637
31 30
32 1023
33 8
34 105
35 153
36 1295
37 12
38 1105
39 29659
40 1599
41 8
42 12167
43 42
44 45
45 44
46 45
47 1105
48 637
49 8
50 147
51 50
52 2703
53 27

List of values

[294409, 7381, 13981, 342271, 9331, 747289, 63, 8, 99, 4921, 1729, 12, 195, 355957, 255, 8, 325, 18, 399, 20, 483, 1183, 575, 8, 27, 1729, 27, 28, 637, 30, 1023, 8, 105, 153, 1295, 12, 1105, 29659, 1599, 8, 12167, 42, 45, 44, 45, 1105, 637, 8, 147, 50, 2703, 27]

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

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