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 | 7 |
| 2 | 39 |
| 3 | 310 |
| 4 | 1197 |
| 5 | 7315 |
| 6 | 14274 |
| 7 | 41752 |
| 8 | 65151 |
| 9 | 139909 |
| 10 | 353626 |
| 11 | 461745 |
| 12 | 937062 |
| 13 | 1412860 |
| 14 | 1709379 |
| 15 | 2439817 |
| 16 | 3945214 |
| 17 | 6058651 |
| 18 | 6922890 |
| 19 | 10075527 |
| 20 | 12705805 |
| 21 | 14199084 |
| 22 | 19475001 |
| 23 | 23729119 |
| 24 | 31371076 |
| 25 | 44264592 |
| 26 | 52030150 |
| 27 | 56275389 |