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 | 47 |
| 2 | 537 |
| 3 | 2771 |
| 4 | 9593 |
| 5 | 25935 |
| 6 | 59533 |
| 7 | 121371 |
| 8 | 226521 |
| 9 | 394443 |
| 10 | 649989 |
| 11 | 1023515 |
| 12 | 1552101 |
| 13 | 2279419 |
| 14 | 3257221 |
| 15 | 4544919 |
| 16 | 6211381 |
| 17 | 8334179 |
| 18 | 11001745 |
| 19 | 14312231 |
| 20 | 18376077 |
| 21 | 23314439 |
| 22 | 29262209 |
| 23 | 36365967 |
| 24 | 44787505 |
| 25 | 54701247 |
| 26 | 66298329 |
| 27 | 79783443 |