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 | 71 |
| 2 | 1112 |
| 3 | 8770 |
| 4 | 44901 |
| 5 | 171601 |
| 6 | 532840 |
| 7 | 1418740 |
| 8 | 3357537 |
| 9 | 7240267 |
| 10 | 14483216 |
| 11 | 27233174 |
| 12 | 48620533 |
| 13 | 83065269 |
| 14 | 136640848 |
| 15 | 217501096 |
| 16 | 336375073 |
| 17 | 507134991 |
| 18 | 747442216 |
| 19 | 1079476394 |
| 20 | 1530752741 |
| 21 | 2135032537 |
| 22 | 2933331864 |
| 23 | 3975033628 |