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 | 40 |
| 2 | 369 |
| 3 | 1872 |
| 4 | 6361 |
| 5 | 17092 |
| 6 | 39109 |
| 7 | 79672 |
| 8 | 148673 |
| 9 | 259248 |
| 10 | 428045 |
| 11 | 675436 |
| 12 | 1027273 |
| 13 | 1513112 |
| 14 | 2169245 |
| 15 | 3037220 |
| 16 | 4166229 |
| 17 | 5610160 |
| 18 | 7435141 |
| 19 | 9709732 |
| 20 | 12516761 |
| 21 | 15944392 |
| 22 | 20095193 |
| 23 | 25074784 |
| 24 | 31012613 |
| 25 | 38034620 |
| 26 | 46293613 |
| 27 | 55944576 |
| 28 | 67167485 |