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 | 1 |
| 2 | 4 |
| 3 | 12 |
| 4 | 28 |
| 5 | 53 |
| 6 | 91 |
| 7 | 141 |
| 8 | 207 |
| 9 | 297 |
| 10 | 401 |
| 11 | 534 |
| 12 | 683 |
| 13 | 869 |
| 14 | 1081 |
| 15 | 1327 |
| 16 | 1601 |
| 17 | 1912 |
| 18 | 2275 |
| 19 | 2665 |
| 20 | 3095 |
| 21 | 3569 |
| 22 | 4110 |
| 23 | 4682 |
| 24 | 5314 |
| 25 | 5996 |
| 26 | 6744 |
| 27 | 7535 |
| 28 | 8394 |
| 29 | 9320 |
| 30 | 10303 |
| 31 | 11367 |
| 32 | 12490 |
| 33 | 13686 |
| 34 | 14938 |
| 35 | 16288 |
| 36 | 17707 |
| 37 | 19227 |
| 38 | 20808 |
| 39 | 22490 |
| 40 | 24233 |
| 41 | 26103 |
| 42 | 28033 |