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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.

A037926 Trajectory of 20 under prime factor concatenation procedure.

Table of values

n a(n)
0 20
1 2
2 2
3 5
4 3
5 3
6 5
7 5
8 5
9 11
10 61
11 11
12 4651
13 3
14 3
15 12739
16 17
17 194867
18 19
19 41
20 22073
21 709
22 273797
23 3
24 97
25 137
26 17791
27 11
28 3610337981
29 7
30 3391
31 4786213
32 3
33 3
34 3
35 3
36 7
37 23
38 31
39 1815403
40 13
41 17
42 23
43 655857429041
44 3
45 31
46 8308475676071413

List of values

[20, 2, 2, 5, 3, 3, 5, 5, 5, 11, 61, 11, 4651, 3, 3, 12739, 17, 194867, 19, 41, 22073, 709, 273797, 3, 97, 137, 17791, 11, 3610337981, 7, 3391, 4786213, 3, 3, 3, 3, 7, 23, 31, 1815403, 13, 17, 23, 655857429041, 3, 31, 8308475676071413]

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

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