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 | 6 |
| 3 | 9 |
| 4 | 16 |
| 5 | 24 |
| 6 | 41 |
| 7 | 64 |
| 8 | 106 |
| 9 | 169 |
| 10 | 276 |
| 11 | 444 |
| 12 | 721 |
| 13 | 1164 |
| 14 | 1886 |
| 15 | 3049 |
| 16 | 4936 |
| 17 | 7984 |
| 18 | 12921 |
| 19 | 20904 |
| 20 | 33826 |
| 21 | 54729 |
| 22 | 88556 |
| 23 | 143284 |
| 24 | 231841 |
| 25 | 375124 |
| 26 | 606966 |
| 27 | 982089 |
| 28 | 1589056 |
| 29 | 2571144 |
| 30 | 4160201 |
| 31 | 6731344 |
| 32 | 10891546 |
| 33 | 17622889 |
| 34 | 28514436 |
| 35 | 46137324 |
| 36 | 74651761 |
| 37 | 120789084 |
| 38 | 195440846 |