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 | 1 |
| 1 | 1 |
| 2 | 49 |
| 3 | 169 |
| 4 | 625 |
| 5 | 1465 |
| 6 | 3337 |
| 7 | 5689 |
| 8 | 10009 |
| 9 | 15937 |
| 10 | 24865 |
| 11 | 35761 |
| 12 | 51265 |
| 13 | 69817 |
| 14 | 94849 |
| 15 | 124009 |
| 16 | 161497 |
| 17 | 204529 |
| 18 | 260137 |
| 19 | 320497 |
| 20 | 394705 |
| 21 | 478705 |
| 22 | 577489 |
| 23 | 687913 |
| 24 | 819313 |
| 25 | 960457 |
| 26 | 1127785 |
| 27 | 1309153 |
| 28 | 1517161 |
| 29 | 1742497 |
| 30 | 2001505 |
| 31 | 2273473 |
| 32 | 2585905 |
| 33 | 2920009 |
| 34 | 3297337 |
| 35 | 3700153 |
| 36 | 4144105 |
| 37 | 4618657 |
| 38 | 5145865 |
| 39 | 5703073 |