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 | 6 |
| 2 | 22 |
| 3 | 92 |
| 4 | 358 |
| 5 | 1460 |
| 6 | 5756 |
| 7 | 23288 |
| 8 | 92294 |
| 9 | 372036 |
| 10 | 1478420 |
| 11 | 5947272 |
| 12 | 23671516 |
| 13 | 95102088 |
| 14 | 378922552 |
| 15 | 1521039088 |
| 16 | 6064766662 |
| 17 | 24329781988 |
| 18 | 97059838372 |
| 19 | 389194630888 |
| 20 | 1553243997172 |
| 21 | 6226104229528 |
| 22 | 24855484384072 |
| 23 | 99604902663568 |
| 24 | 397733491426972 |