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 | 19 |
| 2 | 50 |
| 3 | 211 |
| 4 | 577 |
| 5 | 2083 |
| 6 | 3469 |
| 7 | 7361 |
| 8 | 10395 |
| 9 | 17915 |
| 10 | 35249 |
| 11 | 43188 |
| 12 | 72392 |
| 13 | 97236 |
| 14 | 113324 |
| 15 | 146556 |
| 16 | 209098 |
| 17 | 285307 |
| 18 | 317925 |
| 19 | 417234 |
| 20 | 494939 |
| 21 | 541264 |
| 22 | 684114 |
| 23 | 789130 |
| 24 | 968524 |
| 25 | 1249354 |
| 26 | 1408123 |
| 27 | 1500944 |
| 28 | 1679217 |
| 29 | 1781388 |
| 30 | 1980305 |