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 | 3123 |
| 2 | 17748 |
| 3 | 46228 |
| 4 | 129124 |
| 5 | 257044 |
| 6 | 522244 |
| 7 | 1200964 |
| 8 | 2040964 |
| 9 | 3784804 |
| 10 | 6330724 |
| 11 | 9042244 |
| 12 | 12998404 |
| 13 | 19014724 |
| 14 | 28306324 |
| 15 | 38733364 |
| 16 | 54004804 |
| 17 | 71526004 |
| 18 | 87806884 |
| 19 | 112911124 |
| 20 | 140218324 |
| 21 | 177548884 |
| 22 | 237679924 |
| 23 | 302790244 |
| 24 | 367882804 |
| 25 | 436220164 |