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 | 8 |
| 2 | 23 |
| 3 | 60 |
| 4 | 149 |
| 5 | 364 |
| 6 | 883 |
| 7 | 2136 |
| 8 | 5161 |
| 9 | 12464 |
| 10 | 30095 |
| 11 | 72660 |
| 12 | 175421 |
| 13 | 423508 |
| 14 | 1022443 |
| 15 | 2468400 |
| 16 | 5959249 |
| 17 | 14386904 |
| 18 | 34733063 |
| 19 | 83853036 |
| 20 | 202439141 |
| 21 | 488731324 |
| 22 | 1179901795 |
| 23 | 2848534920 |
| 24 | 6876971641 |
| 25 | 16602478208 |
| 26 | 40081928063 |