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 | 16 |
| 2 | 46 |
| 3 | 106 |
| 4 | 282 |
| 5 | 746 |
| 6 | 2032 |
| 7 | 5588 |
| 8 | 15538 |
| 9 | 43522 |
| 10 | 122676 |
| 11 | 347528 |
| 12 | 988692 |
| 13 | 2822836 |
| 14 | 8084374 |
| 15 | 23214866 |
| 16 | 66819298 |
| 17 | 192723746 |
| 18 | 556887508 |
| 19 | 1611815768 |
| 20 | 4672057072 |
| 21 | 13560785792 |
| 22 | 39408774154 |
| 23 | 114653288678 |
| 24 | 333906950236 |