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.
| n | a(n) |
|---|---|
| 1 | 13901 |
| 2 | 21557 |
| 3 | 28277 |
| 4 | 55661 |
| 5 | 68897 |
| 6 | 128981 |
| 7 | 221717 |
| 8 | 354371 |
| 9 | 548831 |
| 10 | 665111 |
| 11 | 954257 |
| 12 | 1164587 |
| 13 | 1246367 |
| 14 | 1265081 |
| 15 | 1538081 |
| 16 | 1595051 |
| 17 | 1634441 |
| 18 | 2200811 |
| 19 | 2798921 |
| 20 | 2858621 |
| 21 | 3053747 |
| 22 | 3407081 |
| 23 | 3414011 |
| 24 | 3967487 |
| 25 | 3992201 |
| 26 | 4480241 |
| 27 | 4608281 |
| 28 | 4701731 |
| 29 | 4809251 |
| 30 | 5029457 |