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 | 70 |
| 3 | 406 |
| 4 | 1168 |
| 5 | 2948 |
| 6 | 6576 |
| 7 | 13122 |
| 8 | 23808 |
| 9 | 40168 |
| 10 | 63996 |
| 11 | 97344 |
| 12 | 142516 |
| 13 | 202072 |
| 14 | 278828 |
| 15 | 375856 |
| 16 | 496484 |
| 17 | 644296 |
| 18 | 823132 |
| 19 | 1037088 |
| 20 | 1290516 |
| 21 | 1588024 |
| 22 | 1934476 |
| 23 | 2334992 |
| 24 | 2794948 |
| 25 | 3319976 |