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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 1 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 1 |
| 18 | 1 |
| 19 | 11 |
| 20 | 462 |
| 21 | 7217 |
| 22 | 57783 |
| 23 | 289400 |
| 24 | 1043781 |
| 25 | 3042593 |
| 26 | 7833174 |
| 27 | 18821247 |
| 28 | 43417043 |
| 29 | 97550980 |
| 30 | 215243289 |
| 31 | 469069428 |
| 32 | 1020806036 |
| 33 | 2342090587 |
| 34 | 6886047798 |
| 35 | 32238887181 |
| 36 | 199504672863 |
| 37 | 1232775909721 |
| 38 | 6881782444707 |