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 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 2 |
| 14 | 0 |
| 15 | 0 |
| 16 | 6 |
| 17 | 4 |
| 18 | 0 |
| 19 | 0 |
| 20 | 8 |
| 21 | 187 |
| 22 | 0 |
| 23 | 0 |
| 24 | 831 |
| 25 | 1086 |
| 26 | 0 |
| 27 | 0 |
| 28 | 7127 |
| 29 | 3983 |
| 30 | 0 |
| 31 | 0 |
| 32 | 20086 |
| 33 | 120445 |
| 34 | 0 |
| 35 | 0 |
| 36 | 674006 |
| 37 | 1056938 |
| 38 | 0 |
| 39 | 0 |
| 40 | 6983613 |
| 41 | 5964500 |
| 42 | 0 |
| 43 | 0 |
| 44 | 40031490 |
| 45 | 142694311 |
| 46 | 0 |
| 47 | 0 |
| 48 | 853687222 |
| 49 | 1622335105 |
| 50 | 0 |
| 51 | 0 |
| 52 | 10288998770 |
| 53 | 12509111104 |