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 | 27000 |
| 2 | 474552 |
| 3 | 1061208 |
| 4 | 5268024 |
| 5 | 10941048 |
| 6 | 14886936 |
| 7 | 32157432 |
| 8 | 49027896 |
| 9 | 84027672 |
| 10 | 152273304 |
| 11 | 197137368 |
| 12 | 222545016 |
| 13 | 279726264 |
| 14 | 311665752 |
| 15 | 555412248 |
| 16 | 714516984 |
| 17 | 835896888 |
| 18 | 1118386872 |
| 19 | 1280824056 |
| 20 | 1552836312 |
| 21 | 1651400568 |
| 22 | 2593941624 |
| 23 | 2732256792 |
| 24 | 3023464536 |
| 25 | 3666512088 |