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 | 1 |
| 2 | 23 |
| 3 | 841 |
| 4 | 45023 |
| 5 | 3321841 |
| 6 | 323146823 |
| 7 | 40078005241 |
| 8 | 6172529945423 |
| 9 | 1155774491891041 |
| 10 | 258569396539480823 |
| 11 | 68116719340312179241 |
| 12 | 20870735447824438473023 |
| 13 | 7358996769608563523829841 |
| 14 | 2958635655331631430113322023 |
| 15 | 1345380961533244150651061562841 |
| 16 | 687031380335435376384294050107823 |