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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 9 |
| 6 | 15 |
| 7 | 25 |
| 8 | 35 |
| 9 | 49 |
| 10 | 70 |
| 11 | 100 |
| 12 | 160 |
| 13 | 256 |
| 14 | 416 |
| 15 | 676 |
| 16 | 936 |
| 17 | 1296 |
| 18 | 1800 |
| 19 | 2500 |
| 20 | 3550 |
| 21 | 5041 |
| 22 | 7171 |
| 23 | 10201 |
| 24 | 16261 |
| 25 | 25921 |
| 26 | 41377 |
| 27 | 66049 |
| 28 | 107169 |
| 29 | 173889 |
| 30 | 282309 |
| 31 | 458329 |
| 32 | 634349 |
| 33 | 877969 |
| 34 | 1215289 |
| 35 | 1682209 |
| 36 | 2335897 |
| 37 | 3243601 |
| 38 | 4504301 |
| 39 | 6255001 |
| 40 | 8881051 |
| 41 | 12609601 |