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 | 27 |
| 2 | 216 |
| 3 | 868 |
| 4 | 2661 |
| 5 | 6815 |
| 6 | 15340 |
| 7 | 31324 |
| 8 | 59267 |
| 9 | 105461 |
| 10 | 178416 |
| 11 | 289332 |
| 12 | 452617 |
| 13 | 686451 |
| 14 | 1013396 |
| 15 | 1461052 |
| 16 | 2062759 |
| 17 | 2858345 |
| 18 | 3894920 |
| 19 | 5227716 |
| 20 | 6920973 |
| 21 | 9048871 |
| 22 | 11696508 |
| 23 | 14960924 |
| 24 | 18952171 |
| 25 | 23794429 |
| 26 | 29627168 |
| 27 | 36606356 |
| 28 | 44905713 |
| 29 | 54718011 |