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 | 4 |
| 3 | 7 |
| 4 | 11 |
| 5 | 25 |
| 6 | 40 |
| 7 | 76 |
| 8 | 123 |
| 9 | 199 |
| 10 | 322 |
| 11 | 550 |
| 12 | 890 |
| 13 | 1487 |
| 14 | 2406 |
| 15 | 3969 |
| 16 | 6422 |
| 17 | 10391 |
| 18 | 16813 |
| 19 | 27403 |
| 20 | 44339 |
| 21 | 72064 |
| 22 | 116602 |
| 23 | 189187 |
| 24 | 306111 |
| 25 | 496141 |
| 26 | 802773 |
| 27 | 1298914 |
| 28 | 2101687 |
| 29 | 3402808 |
| 30 | 5505859 |
| 31 | 8912238 |