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) |
|---|---|
| 1 | 6 |
| 2 | 8 |
| 3 | 47 |
| 4 | 57 |
| 5 | 278 |
| 6 | 336 |
| 7 | 1623 |
| 8 | 1961 |
| 9 | 9462 |
| 10 | 11432 |
| 11 | 55151 |
| 12 | 66633 |
| 13 | 321446 |
| 14 | 388368 |
| 15 | 1873527 |
| 16 | 2263577 |
| 17 | 10919718 |
| 18 | 13193096 |
| 19 | 63644783 |
| 20 | 76895001 |
| 21 | 370948982 |
| 22 | 448176912 |
| 23 | 2162049111 |
| 24 | 2612166473 |
| 25 | 12601345686 |
| 26 | 15224821928 |
| 27 | 73446025007 |
| 28 | 88736765097 |
| 29 | 428074804358 |
| 30 | 517195768656 |