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 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 3 |
| 5 | 12 |
| 6 | 13 |
| 7 | 33 |
| 8 | 40 |
| 9 | 66 |
| 10 | 81 |
| 11 | 135 |
| 12 | 135 |
| 13 | 212 |
| 14 | 249 |
| 15 | 319 |
| 16 | 354 |
| 17 | 489 |
| 18 | 511 |
| 19 | 681 |
| 20 | 725 |
| 21 | 876 |
| 22 | 981 |
| 23 | 1233 |
| 24 | 1235 |
| 25 | 1509 |
| 26 | 1660 |
| 27 | 1920 |
| 28 | 2032 |
| 29 | 2437 |
| 30 | 2472 |
| 31 | 2936 |
| 32 | 3091 |
| 33 | 3488 |
| 34 | 3755 |
| 35 | 4275 |
| 36 | 4290 |
| 37 | 4955 |
| 38 | 5292 |
| 39 | 5854 |
| 40 | 6024 |
| 41 | 6843 |
| 42 | 6968 |
| 43 | 7870 |
| 44 | 8190 |
| 45 | 8839 |
| 46 | 9340 |
| 47 | 10420 |
| 48 | 10442 |
| 49 | 11568 |
| 50 | 12038 |
| 51 | 13014 |
| 52 | 13474 |
| 53 | 14851 |
| 54 | 15098 |
| 55 | 16436 |