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 | 4 |
| 2 | 12 |
| 3 | 21 |
| 4 | 44 |
| 5 | 74 |
| 6 | 106 |
| 7 | 138 |
| 8 | 172 |
| 9 | 226 |
| 10 | 284 |
| 11 | 337 |
| 12 | 412 |
| 13 | 480 |
| 14 | 552 |
| 15 | 640 |
| 16 | 710 |
| 17 | 813 |
| 18 | 916 |
| 19 | 1014 |
| 20 | 1132 |
| 21 | 1250 |
| 22 | 1384 |
| 23 | 1464 |
| 24 | 1616 |
| 25 | 1791 |
| 26 | 1900 |
| 27 | 2054 |
| 28 | 2206 |
| 29 | 2376 |
| 30 | 2554 |
| 31 | 2701 |
| 32 | 2888 |
| 33 | 3084 |
| 34 | 3272 |
| 35 | 3450 |
| 36 | 3646 |
| 37 | 3860 |
| 38 | 4074 |
| 39 | 4303 |
| 40 | 4546 |
| 41 | 4740 |
| 42 | 4980 |
| 43 | 5212 |
| 44 | 5426 |
| 45 | 5739 |