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 | 3 |
| 2 | 10 |
| 3 | 25 |
| 4 | 52 |
| 5 | 95 |
| 6 | 158 |
| 7 | 245 |
| 8 | 360 |
| 9 | 507 |
| 10 | 690 |
| 11 | 913 |
| 12 | 1180 |
| 13 | 1495 |
| 14 | 1862 |
| 15 | 2285 |
| 16 | 2768 |
| 17 | 3315 |
| 18 | 3930 |
| 19 | 4617 |
| 20 | 5380 |
| 21 | 6223 |
| 22 | 7150 |
| 23 | 8165 |
| 24 | 9272 |
| 25 | 10475 |
| 26 | 11778 |
| 27 | 13185 |
| 28 | 14700 |
| 29 | 16327 |
| 30 | 18070 |
| 31 | 19933 |
| 32 | 21920 |
| 33 | 24035 |
| 34 | 26282 |
| 35 | 28665 |
| 36 | 31188 |
| 37 | 33855 |
| 38 | 36670 |
| 39 | 39637 |
| 40 | 42760 |
| 41 | 46043 |
| 42 | 49490 |
| 43 | 53105 |