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.

A123694 a(n) gives the A089840-index of the nonrecursive Catalan automorphism which is formed from A089840[n] by applying it to the left subtree of a binary tree and leaving the right-hand side subtree intact.

Table of values

n a(n)
0 0
1 7
2 91
3 92
4 93
5 94
6 95
7 114
8 115
9 116
10 117
11 118
12 4207
13 4209
14 4211
15 4214
16 4216
17 4299
18 4301
19 4303
20 4305
21 4307
22 1228
23 1229
24 1230
25 1231
26 1232
27 1233
28 1234
29 1235
30 1236
31 1237
32 1238
33 1239
34 1240
35 1241
36 1242
37 1243
38 1244
39 1245
40 1246
41 1247
42 1248
43 1249
44 1250
45 1347

List of values

[0, 7, 91, 92, 93, 94, 95, 114, 115, 116, 117, 118, 4207, 4209, 4211, 4214, 4216, 4299, 4301, 4303, 4305, 4307, 1228, 1229, 1230, 1231, 1232, 1233, 1234, 1235, 1236, 1237, 1238, 1239, 1240, 1241, 1242, 1243, 1244, 1245, 1246, 1247, 1248, 1249, 1250, 1347]