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 | 2 |
| 2 | 4 |
| 3 | 7 |
| 4 | 11 |
| 5 | 18 |
| 6 | 28 |
| 7 | 43 |
| 8 | 65 |
| 9 | 99 |
| 10 | 150 |
| 11 | 226 |
| 12 | 340 |
| 13 | 511 |
| 14 | 768 |
| 15 | 1153 |
| 16 | 1728 |
| 17 | 2590 |
| 18 | 3885 |
| 19 | 5826 |
| 20 | 8742 |
| 21 | 13116 |
| 22 | 19674 |
| 23 | 29514 |
| 24 | 44280 |
| 25 | 66431 |
| 26 | 99667 |
| 27 | 149531 |
| 28 | 224306 |
| 29 | 336450 |
| 30 | 504648 |
| 31 | 756961 |
| 32 | 1135450 |
| 33 | 1703197 |
| 34 | 2554846 |
| 35 | 3832292 |
| 36 | 5748474 |
| 37 | 8622646 |
| 38 | 12933971 |
| 39 | 19400955 |
| 40 | 29101203 |