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 | 1 |
| 1 | 3 |
| 2 | 12 |
| 3 | 19 |
| 4 | 43 |
| 5 | 60 |
| 6 | 114 |
| 7 | 138 |
| 8 | 225 |
| 9 | 271 |
| 10 | 408 |
| 11 | 462 |
| 12 | 641 |
| 13 | 728 |
| 14 | 982 |
| 15 | 1087 |
| 16 | 1407 |
| 17 | 1542 |
| 18 | 1948 |
| 19 | 2115 |
| 20 | 2625 |
| 21 | 2805 |
| 22 | 3420 |
| 23 | 3646 |
| 24 | 4343 |
| 25 | 4624 |
| 26 | 5464 |
| 27 | 5783 |
| 28 | 6735 |
| 29 | 7100 |
| 30 | 8220 |
| 31 | 8614 |
| 32 | 9863 |
| 33 | 10345 |
| 34 | 11756 |
| 35 | 12249 |
| 36 | 13833 |
| 37 | 14413 |
| 38 | 16158 |
| 39 | 16814 |