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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 8 |
| 7 | 13 |
| 8 | 22 |
| 9 | 35 |
| 10 | 54 |
| 11 | 81 |
| 12 | 121 |
| 13 | 174 |
| 14 | 250 |
| 15 | 352 |
| 16 | 491 |
| 17 | 675 |
| 18 | 924 |
| 19 | 1246 |
| 20 | 1674 |
| 21 | 2226 |
| 22 | 2944 |
| 23 | 3862 |
| 24 | 5046 |
| 25 | 6541 |
| 26 | 8449 |
| 27 | 10846 |
| 28 | 13869 |
| 29 | 17641 |
| 30 | 22365 |
| 31 | 28214 |
| 32 | 35485 |
| 33 | 44443 |
| 34 | 55494 |
| 35 | 69036 |
| 36 | 85650 |
| 37 | 105894 |
| 38 | 130594 |
| 39 | 160561 |
| 40 | 196923 |
| 41 | 240847 |
| 42 | 293907 |
| 43 | 357722 |
| 44 | 434477 |
| 45 | 526448 |