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 | 8 |
| 2 | 6 |
| 3 | 9 |
| 4 | 28 |
| 5 | 36 |
| 6 | 80 |
| 7 | 235 |
| 8 | 541 |
| 9 | 1115 |
| 10 | 2554 |
| 11 | 6095 |
| 12 | 13920 |
| 13 | 31216 |
| 14 | 71431 |
| 15 | 164589 |
| 16 | 375943 |
| 17 | 856294 |
| 18 | 1957963 |
| 19 | 4481840 |
| 20 | 10241792 |
| 21 | 23394379 |
| 22 | 53477141 |
| 23 | 122262891 |
| 24 | 279435298 |
| 25 | 638618663 |
| 26 | 1459697640 |
| 27 | 3336520448 |
| 28 | 7626024455 |
| 29 | 17430072821 |
| 30 | 39839300103 |