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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 65 |
| 3 | 1095 |
| 4 | 8194 |
| 5 | 39065 |
| 6 | 139971 |
| 7 | 411775 |
| 8 | 1048580 |
| 9 | 2391489 |
| 10 | 5000005 |
| 11 | 9743591 |
| 12 | 17915910 |
| 13 | 31374265 |
| 14 | 52706759 |
| 15 | 85429695 |
| 16 | 134217736 |
| 17 | 205169345 |
| 18 | 306110025 |
| 19 | 446935879 |
| 20 | 640000010 |
| 21 | 900544281 |
| 22 | 1247178955 |
| 23 | 1702412735 |
| 24 | 2293235724 |
| 25 | 3051757825 |
| 26 | 4015905101 |