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.

A026411 Position of the second n in A026409.

Table of values

n a(n)
2 4
3 6
4 10
5 12
6 15
7 19
8 23
9 25
10 30
11 36
12 43
13 45
14 51
15 54
16 66
17 67
18 77
19 87
20 90
21 99
22 100
23 124
24 125
25 135
26 139
27 145
28 158
29 178
30 180
31 196
32 197
33 201
34 225
35 241
36 252
37 256
38 258
39 283
40 302
41 303
42 321
43 327
44 350
45 383
46 390
47 405
48 407
49 426
50 447
51 459
52 477
53 520
54 523
55 542
56 568
57 569
58 586
59 611
60 614
61 615

List of values

[4, 6, 10, 12, 15, 19, 23, 25, 30, 36, 43, 45, 51, 54, 66, 67, 77, 87, 90, 99, 100, 124, 125, 135, 139, 145, 158, 178, 180, 196, 197, 201, 225, 241, 252, 256, 258, 283, 302, 303, 321, 327, 350, 383, 390, 405, 407, 426, 447, 459, 477, 520, 523, 542, 568, 569, 586, 611, 614, 615]