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 | 597 |
| 2 | 11753 |
| 3 | 228689 |
| 4 | 4462968 |
| 5 | 87024544 |
| 6 | 1697323707 |
| 7 | 33102432698 |
| 8 | 645599385182 |
| 9 | 12591115117932 |
| 10 | 245564664777825 |
| 11 | 4789248769819459 |
| 12 | 93404749891139903 |
| 13 | 1821673395009104814 |
| 14 | 35528107366814113243 |
| 15 | 692904893934316841530 |