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 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 12 |
| 6 | 16 |
| 7 | 18 |
| 8 | 30 |
| 9 | 60 |
| 10 | 88 |
| 11 | 106 |
| 12 | 126 |
| 13 | 520 |
| 14 | 606 |
| 15 | 1278 |
| 16 | 2202 |
| 17 | 2280 |
| 18 | 3216 |
| 19 | 4252 |
| 20 | 4422 |
| 21 | 9688 |
| 22 | 9940 |
| 23 | 11212 |
| 24 | 19936 |
| 25 | 21700 |
| 26 | 23208 |
| 27 | 44496 |
| 28 | 86242 |
| 29 | 110502 |
| 30 | 132048 |
| 31 | 216090 |
| 32 | 756838 |
| 33 | 859432 |
| 34 | 1257786 |
| 35 | 1398268 |
| 36 | 2976220 |
| 37 | 3021376 |
| 38 | 6972592 |
| 39 | 13466916 |
| 40 | 20996010 |
| 41 | 24036582 |
| 42 | 25964950 |
| 43 | 30402456 |
| 44 | 32582656 |