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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.

A358232 Numbers k for which A276086(k) == 1 mod A003415(k), where A276086 is the primorial base exp-function, and A003415 is the arithmetic derivative.

Table of values

n a(n)
1 4
2 16
3 54
4 66
5 864
6 1710
7 18900
8 71254
9 120731
10 492943
11 625081
12 700149
13 1489459
14 3564419
15 44995876
16 219794251
17 297776323
18 596506003
19 642171139
20 972082711
21 1065608507
22 1252704562
23 1385872853
24 1416187590
25 1799971549
26 1818740449

List of values

[4, 16, 54, 66, 864, 1710, 18900, 71254, 120731, 492943, 625081, 700149, 1489459, 3564419, 44995876, 219794251, 297776323, 596506003, 642171139, 972082711, 1065608507, 1252704562, 1385872853, 1416187590, 1799971549, 1818740449]

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

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