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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.

A326742 Numbers which converge to 9 under repeated application of the powertrain map of A133500.

Table of values

n a(n)
1 9
2 25
3 32
4 52
5 91
6 109
7 119
8 129
9 139
10 149
11 159
12 169
13 179
14 189
15 199
16 209
17 228
18 234
19 242
20 251
21 279
22 295
23 309
24 313
25 321
26 337
27 377
28 409
29 418
30 422
31 509
32 515
33 521
34 539
35 544
36 609
37 709
38 809
39 814
40 835
41 909
42 911
43 965
44 1025
45 1032
46 1052
47 1091
48 1125
49 1132
50 1152
51 1191

List of values

[9, 25, 32, 52, 91, 109, 119, 129, 139, 149, 159, 169, 179, 189, 199, 209, 228, 234, 242, 251, 279, 295, 309, 313, 321, 337, 377, 409, 418, 422, 509, 515, 521, 539, 544, 609, 709, 809, 814, 835, 909, 911, 965, 1025, 1032, 1052, 1091, 1125, 1132, 1152, 1191]

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

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