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 | 1 |
| 2 | 4 |
| 3 | 7 |
| 4 | 16 |
| 5 | 25 |
| 6 | 52 |
| 7 | 79 |
| 8 | 160 |
| 9 | 241 |
| 10 | 484 |
| 11 | 727 |
| 12 | 1456 |
| 13 | 2185 |
| 14 | 4372 |
| 15 | 6559 |
| 16 | 13120 |
| 17 | 19681 |
| 18 | 39364 |
| 19 | 59047 |
| 20 | 118096 |
| 21 | 177145 |
| 22 | 354292 |
| 23 | 531439 |
| 24 | 1062880 |
| 25 | 1594321 |
| 26 | 3188644 |
| 27 | 4782967 |
| 28 | 9565936 |
| 29 | 14348905 |
| 30 | 28697812 |
| 31 | 43046719 |
| 32 | 86093440 |
| 33 | 129140161 |
| 34 | 258280324 |
| 35 | 387420487 |
| 36 | 774840976 |
| 37 | 1162261465 |