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 | 12 |
| 3 | 36 |
| 4 | 75 |
| 5 | 157 |
| 6 | 254 |
| 7 | 434 |
| 8 | 635 |
| 9 | 911 |
| 10 | 1237 |
| 11 | 1734 |
| 12 | 2162 |
| 13 | 2908 |
| 14 | 3611 |
| 15 | 4461 |
| 16 | 5435 |
| 17 | 6734 |
| 18 | 7879 |
| 19 | 9568 |
| 20 | 10964 |
| 21 | 12861 |
| 22 | 14913 |
| 23 | 17438 |
| 24 | 19426 |
| 25 | 22381 |
| 26 | 25251 |
| 27 | 28482 |
| 28 | 31624 |
| 29 | 35879 |
| 30 | 39100 |
| 31 | 44165 |
| 32 | 48267 |
| 33 | 53463 |
| 34 | 58590 |
| 35 | 64476 |
| 36 | 69214 |
| 37 | 76693 |
| 38 | 83132 |
| 39 | 90303 |
| 40 | 96766 |