cp's OEIS Frontend

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.

A385747 Least number that reaches 1 after exactly n iterations of the infinitary analog of the totient function A384247.

Table of values

n a(n)
0 1
1 2
2 3
3 4
4 5
5 9
6 16
7 17
8 41
9 73
10 101
11 197
12 467
13 829
14 1109
15 2761
16 4849
17 7831
18 12401
19 26189
20 52379
21 85853
22 139589
23 237007
24 395533
25 947043
26 1967027
27 3446033
28 5396427
29 9510437
30 17502533
31 35005067
32 71202449
33 90187609
34 164664701
35 395199461
36 705113873
37 1265735729
38 1803553457

List of values

[1, 2, 3, 4, 5, 9, 16, 17, 41, 73, 101, 197, 467, 829, 1109, 2761, 4849, 7831, 12401, 26189, 52379, 85853, 139589, 237007, 395533, 947043, 1967027, 3446033, 5396427, 9510437, 17502533, 35005067, 71202449, 90187609, 164664701, 395199461, 705113873, 1265735729, 1803553457]

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

Content is available under The OEIS End-User License Agreement.