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 | 5 |
| 2 | 19 |
| 3 | 61 |
| 4 | 971 |
| 5 | 1451 |
| 6 | 2711 |
| 7 | 3061 |
| 8 | 3449 |
| 9 | 6011 |
| 10 | 15139 |
| 11 | 15241 |
| 12 | 21821 |
| 13 | 27851 |
| 14 | 39839 |
| 15 | 51749 |
| 16 | 62459 |
| 17 | 75679 |
| 18 | 76081 |
| 19 | 82591 |
| 20 | 97001 |
| 21 | 121039 |
| 22 | 121441 |
| 23 | 122299 |
| 24 | 135581 |
| 25 | 161569 |
| 26 | 162671 |
| 27 | 196681 |
| 28 | 196831 |
| 29 | 200881 |
| 30 | 214741 |
| 31 | 217271 |
| 32 | 222931 |
| 33 | 242069 |
| 34 | 243119 |
| 35 | 254161 |