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 | 1024 |
| 2 | 4096 |
| 3 | 16128 |
| 4 | 54560 |
| 5 | 155144 |
| 6 | 385738 |
| 7 | 864924 |
| 8 | 1788660 |
| 9 | 3467296 |
| 10 | 6376160 |
| 11 | 11223728 |
| 12 | 19042353 |
| 13 | 31307660 |
| 14 | 50094036 |
| 15 | 78275176 |
| 16 | 119780409 |
| 17 | 179919544 |
| 18 | 265791268 |
| 19 | 386792720 |
| 20 | 555250782 |
| 21 | 787198896 |
| 22 | 1103326862 |
| 23 | 1530135124 |