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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 25 |
| 6 | 46 |
| 7 | 81 |
| 8 | 141 |
| 9 | 234 |
| 10 | 383 |
| 11 | 615 |
| 12 | 968 |
| 13 | 1503 |
| 14 | 2298 |
| 15 | 3468 |
| 16 | 5176 |
| 17 | 7653 |
| 18 | 11178 |
| 19 | 16212 |
| 20 | 23290 |
| 21 | 33218 |
| 22 | 46996 |
| 23 | 66091 |
| 24 | 92277 |
| 25 | 128122 |
| 26 | 176787 |
| 27 | 242674 |
| 28 | 331338 |
| 29 | 450279 |
| 30 | 608832 |
| 31 | 819748 |
| 32 | 1098907 |
| 33 | 1467122 |
| 34 | 1951020 |
| 35 | 2584796 |
| 36 | 3411998 |