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 | 42 |
| 2 | 152 |
| 3 | 426 |
| 4 | 1032 |
| 5 | 2216 |
| 6 | 4376 |
| 7 | 8044 |
| 8 | 13994 |
| 9 | 23210 |
| 10 | 37030 |
| 11 | 57086 |
| 12 | 85506 |
| 13 | 124816 |
| 14 | 178186 |
| 15 | 249308 |
| 16 | 342708 |
| 17 | 463550 |
| 18 | 618042 |
| 19 | 813186 |
| 20 | 1057238 |
| 21 | 1359422 |
| 22 | 1730468 |
| 23 | 2182232 |
| 24 | 2728362 |
| 25 | 3383832 |
| 26 | 4165678 |
| 27 | 5092482 |
| 28 | 6185216 |
| 29 | 7466594 |
| 30 | 8962070 |