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 | 1 |
| 3 | 5 |
| 4 | 13 |
| 5 | 29 |
| 6 | 54 |
| 7 | 97 |
| 8 | 161 |
| 9 | 257 |
| 10 | 402 |
| 11 | 604 |
| 12 | 896 |
| 13 | 1299 |
| 14 | 1866 |
| 15 | 2616 |
| 16 | 3665 |
| 17 | 5031 |
| 18 | 6891 |
| 19 | 9290 |
| 20 | 12498 |
| 21 | 16600 |
| 22 | 22008 |
| 23 | 28841 |
| 24 | 37740 |
| 25 | 48919 |
| 26 | 63294 |
| 27 | 81230 |
| 28 | 104048 |
| 29 | 132355 |
| 30 | 168048 |
| 31 | 212070 |
| 32 | 267105 |
| 33 | 334671 |
| 34 | 418486 |
| 35 | 520857 |
| 36 | 647081 |
| 37 | 800531 |
| 38 | 988510 |
| 39 | 1216159 |
| 40 | 1493430 |