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 | 3 |
| 2 | 1 |
| 3 | 15 |
| 4 | 12 |
| 5 | 1 |
| 6 | 136 |
| 7 | 168 |
| 8 | 21 |
| 9 | 1 |
| 10 | 1998 |
| 11 | 3190 |
| 12 | 483 |
| 13 | 30 |
| 14 | 1 |
| 15 | 41973 |
| 16 | 80136 |
| 17 | 13615 |
| 18 | 960 |
| 19 | 39 |
| 20 | 1 |
| 21 | 1166263 |
| 22 | 2553162 |
| 23 | 469476 |
| 24 | 35785 |
| 25 | 1599 |
| 26 | 48 |
| 27 | 1 |
| 28 | 40747561 |
| 29 | 99579994 |
| 30 | 19419225 |
| 31 | 1562220 |
| 32 | 74074 |
| 33 | 2400 |
| 34 | 57 |
| 35 | 1 |
| 36 | 1726907675 |
| 37 | 4624245724 |
| 38 | 944233801 |
| 39 | 79072620 |