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 | 3 |
| 2 | 30237 |
| 3 | 292317 |
| 4 | 3116957 |
| 5 | 4044037 |
| 6 | 6902277 |
| 7 | 73442597 |
| 8 | 115767957 |
| 9 | 137410557 |
| 10 | 416776357 |
| 11 | 526908197 |
| 12 | 541579497 |
| 13 | 695350653 |
| 14 | 758403357 |
| 15 | 1105731897 |
| 16 | 1178082357 |
| 17 | 1233277917 |
| 18 | 1309742557 |
| 19 | 1866261597 |
| 20 | 1998267037 |
| 21 | 2161411557 |
| 22 | 2563416237 |
| 23 | 2750761437 |
| 24 | 2873771997 |
| 25 | 2892203997 |
| 26 | 3331848517 |
| 27 | 3621735037 |
| 28 | 3758847117 |