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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.

A375138 Numbers k such that the k-th composition in standard order (row k of A066099) matches the dashed pattern 23-1.

Table of values

n a(n)
1 41
2 81
3 83
4 105
5 145
6 161
7 163
8 165
9 166
10 167
11 169
12 209
13 211
14 233
15 289
16 290
17 291
18 297
19 321
20 323
21 325
22 326
23 327
24 329
25 331
26 332
27 333
28 334
29 335
30 337
31 339
32 361
33 401
34 417
35 419
36 421
37 422
38 423
39 425
40 465
41 467
42 489
43 545
44 553
45 577
46 578
47 579
48 581
49 582
50 583
51 593
52 595
53 617

List of values

[41, 81, 83, 105, 145, 161, 163, 165, 166, 167, 169, 209, 211, 233, 289, 290, 291, 297, 321, 323, 325, 326, 327, 329, 331, 332, 333, 334, 335, 337, 339, 361, 401, 417, 419, 421, 422, 423, 425, 465, 467, 489, 545, 553, 577, 578, 579, 581, 582, 583, 593, 595, 617]

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

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