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 | 23 |
| 2 | 363 |
| 3 | 2591 |
| 4 | 11413 |
| 5 | 37505 |
| 6 | 101567 |
| 7 | 238453 |
| 8 | 503849 |
| 9 | 979919 |
| 10 | 1783797 |
| 11 | 3075089 |
| 12 | 5067465 |
| 13 | 8035301 |
| 14 | 12330321 |
| 15 | 18389067 |
| 16 | 26749755 |
| 17 | 38062317 |
| 18 | 53112803 |
| 19 | 72823295 |
| 20 | 98289495 |
| 21 | 130780551 |
| 22 | 171770127 |
| 23 | 222946517 |
| 24 | 286251779 |
| 25 | 363870209 |
| 26 | 458294877 |