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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 13 |
| 7 | 24 |
| 8 | 44 |
| 9 | 81 |
| 10 | 150 |
| 11 | 280 |
| 12 | 526 |
| 13 | 992 |
| 14 | 1875 |
| 15 | 3551 |
| 16 | 6740 |
| 17 | 12823 |
| 18 | 24450 |
| 19 | 46709 |
| 20 | 89383 |
| 21 | 171325 |
| 22 | 328962 |
| 23 | 632849 |
| 24 | 1219909 |
| 25 | 2356217 |
| 26 | 4559224 |
| 27 | 8835610 |
| 28 | 17144046 |
| 29 | 33295497 |
| 30 | 64705083 |
| 31 | 125802338 |
| 32 | 244673791 |
| 33 | 476011284 |
| 34 | 926373373 |
| 35 | 1803512210 |
| 36 | 3512774806 |