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 | 15841 |
| 2 | 52633 |
| 3 | 5049001 |
| 4 | 68154001 |
| 5 | 104852881 |
| 6 | 238244041 |
| 7 | 382536001 |
| 8 | 3215031751 |
| 9 | 3863326897 |
| 10 | 7211236033 |
| 11 | 8214723001 |
| 12 | 15462960481 |
| 13 | 22008493921 |
| 14 | 23000028481 |
| 15 | 29392867201 |
| 16 | 31708772257 |
| 17 | 41217865921 |
| 18 | 53125756201 |
| 19 | 60518537641 |
| 20 | 74190097801 |
| 21 | 77874636001 |
| 22 | 83828294551 |
| 23 | 103387371361 |