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) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 9 |
| 3 | 18 |
| 4 | 29 |
| 5 | 42 |
| 6 | 66 |
| 7 | 93 |
| 8 | 112 |
| 9 | 139 |
| 10 | 177 |
| 11 | 210 |
| 12 | 249 |
| 13 | 302 |
| 14 | 347 |
| 15 | 387 |
| 16 | 443 |
| 17 | 505 |
| 18 | 566 |
| 19 | 632 |
| 20 | 698 |
| 21 | 768 |
| 22 | 844 |
| 23 | 917 |
| 24 | 998 |
| 25 | 1093 |
| 26 | 1182 |
| 27 | 1267 |
| 28 | 1364 |
| 29 | 1463 |
| 30 | 1560 |
| 31 | 1670 |
| 32 | 1788 |
| 33 | 1900 |
| 34 | 2009 |
| 35 | 2124 |
| 36 | 2251 |
| 37 | 2384 |
| 38 | 2513 |
| 39 | 2645 |
| 40 | 2784 |
| 41 | 2923 |
| 42 | 3065 |
| 43 | 3213 |
| 44 | 3366 |
| 45 | 3524 |
| 46 | 3680 |
| 47 | 3837 |
| 48 | 4008 |