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 | 3 |
| 2 | 7 |
| 3 | 14 |
| 4 | 26 |
| 5 | 48 |
| 6 | 90 |
| 7 | 170 |
| 8 | 321 |
| 9 | 605 |
| 10 | 1139 |
| 11 | 2144 |
| 12 | 4037 |
| 13 | 7603 |
| 14 | 14319 |
| 15 | 26966 |
| 16 | 50782 |
| 17 | 95632 |
| 18 | 180094 |
| 19 | 339154 |
| 20 | 638697 |
| 21 | 1202797 |
| 22 | 2265111 |
| 23 | 4265664 |
| 24 | 8033113 |
| 25 | 15127987 |
| 26 | 28489079 |
| 27 | 53650734 |
| 28 | 101035250 |
| 29 | 190269936 |
| 30 | 358317010 |
| 31 | 674783850 |
| 32 | 1270755313 |