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 | 11 |
| 6 | 12 |
| 7 | 22 |
| 8 | 44 |
| 9 | 66 |
| 10 | 132 |
| 11 | 148 |
| 12 | 276 |
| 13 | 671 |
| 14 | 814 |
| 15 | 1068 |
| 16 | 2388 |
| 17 | 3498 |
| 18 | 24564 |
| 19 | 29234 |
| 20 | 54924 |
| 21 | 60126 |
| 22 | 80476 |
| 23 | 80526 |
| 24 | 85866 |
| 25 | 212532 |
| 26 | 234652 |
| 27 | 252967 |
| 28 | 307396 |
| 29 | 368668 |
| 30 | 700404 |
| 31 | 885786 |
| 32 | 1121044 |
| 33 | 1350812 |
| 34 | 1366476 |
| 35 | 1631004 |
| 36 | 1697116 |
| 37 | 1698906 |
| 38 | 1718431 |
| 39 | 1803166 |
| 40 | 2637811 |
| 41 | 3186678 |
| 42 | 3704196 |
| 43 | 4888236 |
| 44 | 8990356 |