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) |
|---|---|
| 1 | 26 |
| 2 | 45 |
| 3 | 80 |
| 4 | 144 |
| 5 | 256 |
| 6 | 451 |
| 7 | 796 |
| 8 | 1413 |
| 9 | 2510 |
| 10 | 4448 |
| 11 | 7872 |
| 12 | 13943 |
| 13 | 24718 |
| 14 | 43817 |
| 15 | 77636 |
| 16 | 137540 |
| 17 | 243712 |
| 18 | 431899 |
| 19 | 765360 |
| 20 | 1356169 |
| 21 | 2403034 |
| 22 | 4258172 |
| 23 | 7545592 |
| 24 | 13370799 |
| 25 | 23692770 |
| 26 | 41983189 |
| 27 | 74394040 |
| 28 | 131826104 |
| 29 | 233594880 |
| 30 | 413927683 |
| 31 | 733476228 |