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 | 7 |
| 3 | 8 |
| 4 | 81 |
| 5 | 184 |
| 6 | 1051 |
| 7 | 3176 |
| 8 | 14609 |
| 9 | 50408 |
| 10 | 210903 |
| 11 | 773888 |
| 12 | 3102369 |
| 13 | 11711856 |
| 14 | 46045259 |
| 15 | 176114128 |
| 16 | 686258465 |
| 17 | 2640610128 |
| 18 | 10247733223 |
| 19 | 39540368248 |
| 20 | 153162778865 |
| 21 | 591718044968 |
| 22 | 2290106238779 |
| 23 | 8852558325048 |
| 24 | 34248315785777 |
| 25 | 132424316290104 |
| 26 | 512224146701367 |