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.

A031091 Position of n-th 3 in A031087.

Table of values

n a(n)
1 3
2 15
3 33
4 46
5 48
6 50
7 51
8 52
9 54
10 56
11 58
12 60
13 62
14 69
15 87
16 105
17 123
18 141
19 162
20 189
21 216
22 235
23 238
24 241
25 243
26 244
27 247
28 250
29 253
30 256
31 259
32 270
33 297
34 324
35 351
36 378
37 405
38 432
39 459
40 478
41 481
42 484
43 486
44 487
45 490
46 493
47 496
48 499
49 502

List of values

[3, 15, 33, 46, 48, 50, 51, 52, 54, 56, 58, 60, 62, 69, 87, 105, 123, 141, 162, 189, 216, 235, 238, 241, 243, 244, 247, 250, 253, 256, 259, 270, 297, 324, 351, 378, 405, 432, 459, 478, 481, 484, 486, 487, 490, 493, 496, 499, 502]