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 | 9 |
| 3 | 18 |
| 4 | 29 |
| 5 | 44 |
| 6 | 61 |
| 7 | 81 |
| 8 | 104 |
| 9 | 130 |
| 10 | 159 |
| 11 | 191 |
| 12 | 225 |
| 13 | 263 |
| 14 | 303 |
| 15 | 347 |
| 16 | 393 |
| 17 | 442 |
| 18 | 494 |
| 19 | 549 |
| 20 | 606 |
| 21 | 667 |
| 22 | 730 |
| 23 | 797 |
| 24 | 866 |
| 25 | 938 |
| 26 | 1013 |
| 27 | 1091 |
| 28 | 1172 |
| 29 | 1255 |
| 30 | 1342 |
| 31 | 1431 |
| 32 | 1524 |
| 33 | 1619 |
| 34 | 1717 |
| 35 | 1818 |
| 36 | 1922 |
| 37 | 2029 |
| 38 | 2138 |
| 39 | 2251 |
| 40 | 2366 |
| 41 | 2485 |
| 42 | 2606 |
| 43 | 2730 |
| 44 | 2857 |
| 45 | 2987 |
| 46 | 3119 |
| 47 | 3255 |
| 48 | 3394 |
| 49 | 3535 |