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 | 70 |
| 2 | 836 |
| 3 | 7192 |
| 4 | 9272 |
| 5 | 73616 |
| 6 | 243892 |
| 7 | 338572 |
| 8 | 1188256 |
| 9 | 1901728 |
| 10 | 3963968 |
| 11 | 28279232 |
| 12 | 36228736 |
| 13 | 91322752 |
| 14 | 141659096 |
| 15 | 263144192 |
| 16 | 351295232 |
| 17 | 664373504 |
| 18 | 2113834496 |
| 19 | 5522263024 |
| 20 | 6933503488 |
| 21 | 19179527168 |
| 22 | 22755515392 |
| 23 | 31574500724 |
| 24 | 98620009472 |
| 25 | 135895635968 |