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 | 1 |
| 2 | 17 |
| 3 | 137 |
| 4 | 611 |
| 5 | 1839 |
| 6 | 4405 |
| 7 | 9101 |
| 8 | 16859 |
| 9 | 28987 |
| 10 | 46663 |
| 11 | 71797 |
| 12 | 105863 |
| 13 | 151259 |
| 14 | 209895 |
| 15 | 284777 |
| 16 | 378661 |
| 17 | 493863 |
| 18 | 634985 |
| 19 | 804801 |
| 20 | 1007439 |
| 21 | 1245345 |
| 22 | 1526369 |
| 23 | 1851971 |
| 24 | 2227153 |
| 25 | 2658287 |
| 26 | 3151447 |
| 27 | 3711837 |
| 28 | 4343483 |
| 29 | 5053859 |
| 30 | 5849959 |
| 31 | 6739255 |
| 32 | 7727399 |
| 33 | 8825137 |
| 34 | 10034745 |