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 | 2 |
| 2 | 6 |
| 3 | 12 |
| 4 | 26 |
| 5 | 44 |
| 6 | 84 |
| 7 | 136 |
| 8 | 230 |
| 9 | 366 |
| 10 | 580 |
| 11 | 884 |
| 12 | 1356 |
| 13 | 2012 |
| 14 | 2968 |
| 15 | 4320 |
| 16 | 6226 |
| 17 | 8856 |
| 18 | 12522 |
| 19 | 17508 |
| 20 | 24324 |
| 21 | 33528 |
| 22 | 45892 |
| 23 | 62392 |
| 24 | 84372 |
| 25 | 113374 |
| 26 | 151548 |
| 27 | 201552 |
| 28 | 266752 |
| 29 | 351380 |
| 30 | 460920 |
| 31 | 601992 |
| 32 | 783158 |
| 33 | 1014984 |
| 34 | 1310600 |
| 35 | 1686408 |
| 36 | 2162814 |
| 37 | 2764748 |
| 38 | 3523324 |
| 39 | 4476720 |
| 40 | 5671748 |