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 | 16 |
| 1 | 17 |
| 2 | 135 |
| 3 | 287 |
| 4 | 2144 |
| 5 | 2431 |
| 6 | 79936 |
| 7 | 82367 |
| 8 | 656505 |
| 9 | 1395377 |
| 10 | 10424144 |
| 11 | 11819521 |
| 12 | 388648816 |
| 13 | 400468337 |
| 14 | 3191927175 |
| 15 | 6784322687 |
| 16 | 50682185984 |
| 17 | 57466508671 |
| 18 | 1889610463456 |
| 19 | 1947076972127 |
| 20 | 15519149268345 |
| 21 | 32985375508817 |
| 22 | 246416777830064 |
| 23 | 279402153338881 |