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 | 26 |
| 3 | 27 |
| 4 | 64 |
| 5 | 137 |
| 6 | 271 |
| 7 | 655 |
| 8 | 1412 |
| 9 | 3245 |
| 10 | 7809 |
| 11 | 17290 |
| 12 | 40682 |
| 13 | 93292 |
| 14 | 216048 |
| 15 | 499755 |
| 16 | 1162587 |
| 17 | 2685521 |
| 18 | 6238096 |
| 19 | 14489376 |
| 20 | 33631721 |
| 21 | 78120529 |
| 22 | 181638185 |
| 23 | 422198419 |
| 24 | 981730209 |
| 25 | 2284138522 |
| 26 | 5314049218 |
| 27 | 12366970040 |
| 28 | 28787274304 |
| 29 | 67017999388 |