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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.

A226943 Semiprimes in the order in which they appear in the decimal expansion of Pi.

Table of values

n a(n)
1 4
2 14
3 314
4 141
5 15
6 415
7 1415
8 9
9 159
10 6
11 26
12 926
13 5926
14 15926
15 65
16 265
17 2653
18 92653
19 592653
20 35
21 535
22 6535
23 5926535
24 58
25 358
26 265358
27 314159265358
28 589
29 3589
30 53589
31 2653589
32 92653589
33 1592653589
34 1415926535897
35 979
36 5358979
37 59265358979
38 159265358979

List of values

[4, 14, 314, 141, 15, 415, 1415, 9, 159, 6, 26, 926, 5926, 15926, 65, 265, 2653, 92653, 592653, 35, 535, 6535, 5926535, 58, 358, 265358, 314159265358, 589, 3589, 53589, 2653589, 92653589, 1592653589, 1415926535897, 979, 5358979, 59265358979, 159265358979]

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

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