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 | 3 |
| 1 | 12 |
| 2 | 15 |
| 3 | 27 |
| 4 | 42 |
| 5 | 69 |
| 6 | 111 |
| 7 | 180 |
| 8 | 291 |
| 9 | 471 |
| 10 | 762 |
| 11 | 1233 |
| 12 | 1995 |
| 13 | 3228 |
| 14 | 5223 |
| 15 | 8451 |
| 16 | 13674 |
| 17 | 22125 |
| 18 | 35799 |
| 19 | 57924 |
| 20 | 93723 |
| 21 | 151647 |
| 22 | 245370 |
| 23 | 397017 |
| 24 | 642387 |
| 25 | 1039404 |
| 26 | 1681791 |
| 27 | 2721195 |
| 28 | 4402986 |
| 29 | 7124181 |
| 30 | 11527167 |
| 31 | 18651348 |
| 32 | 30178515 |
| 33 | 48829863 |
| 34 | 79008378 |