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) |
|---|---|
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 4 |
| 7 | 3 |
| 8 | 0 |
| 9 | 1 |
| 10 | 28 |
| 11 | 27 |
| 12 | 0 |
| 13 | 1 |
| 14 | 168 |
| 15 | 167 |
| 16 | 0 |
| 17 | 1 |
| 18 | 984 |
| 19 | 983 |
| 20 | 0 |
| 21 | 1 |
| 22 | 5740 |
| 23 | 5739 |
| 24 | 0 |
| 25 | 1 |
| 26 | 33460 |
| 27 | 33459 |
| 28 | 0 |
| 29 | 1 |
| 30 | 195024 |
| 31 | 195023 |
| 32 | 0 |
| 33 | 1 |
| 34 | 1136688 |
| 35 | 1136687 |
| 36 | 0 |
| 37 | 1 |
| 38 | 6625108 |
| 39 | 6625107 |
| 40 | 0 |
| 41 | 1 |
| 42 | 38613964 |
| 43 | 38613963 |
| 44 | 0 |
| 45 | 1 |
| 46 | 225058680 |
| 47 | 225058679 |
| 48 | 0 |
| 49 | 1 |
| 50 | 1311738120 |
| 51 | 1311738119 |
| 52 | 0 |
| 53 | 1 |
| 54 | 7645370044 |
| 55 | 7645370043 |
| 56 | 0 |
| 57 | 1 |