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 | 11 |
| 3 | 29 |
| 4 | 54 |
| 5 | 99 |
| 6 | 163 |
| 7 | 239 |
| 8 | 344 |
| 9 | 486 |
| 10 | 648 |
| 11 | 847 |
| 12 | 1069 |
| 13 | 1355 |
| 14 | 1680 |
| 15 | 2046 |
| 16 | 2446 |
| 17 | 2911 |
| 18 | 3443 |
| 19 | 4022 |
| 20 | 4662 |
| 21 | 5395 |
| 22 | 6145 |
| 23 | 6998 |
| 24 | 7913 |
| 25 | 8913 |
| 26 | 10006 |
| 27 | 11194 |
| 28 | 12437 |
| 29 | 13751 |
| 30 | 15216 |
| 31 | 16710 |
| 32 | 18361 |
| 33 | 20123 |
| 34 | 21950 |
| 35 | 23919 |
| 36 | 25956 |
| 37 | 28150 |
| 38 | 30415 |
| 39 | 32876 |
| 40 | 35385 |
| 41 | 38049 |
| 42 | 40876 |