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.

A153826 Index sequence to A089840: positions of bijections that preserve A127301 (the non-oriented form of general trees).

Table of values

n a(n)
0 0
1 2
2 22
3 23
4 24
5 25
6 26
7 91
8 276
9 277
10 278
11 279
12 280
13 281
14 282
15 283
16 284
17 285
18 286
19 287
20 288
21 289
22 290
23 291
24 292
25 293
26 294
27 295
28 296
29 297
30 298
31 395
32 531
33 634
34 876
35 1005
36 1109
37 1228
38 1229
39 1230
40 1231
41 1232
42 1704
43 3608
44 3611
45 3613
46 3615
47 3617
48 4392

List of values

[0, 2, 22, 23, 24, 25, 26, 91, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 395, 531, 634, 876, 1005, 1109, 1228, 1229, 1230, 1231, 1232, 1704, 3608, 3611, 3613, 3615, 3617, 4392]

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

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