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 | 5 |
| 3 | 23 |
| 4 | 55 |
| 5 | 155 |
| 6 | 227 |
| 7 | 521 |
| 8 | 777 |
| 9 | 1263 |
| 10 | 1663 |
| 11 | 2873 |
| 12 | 3449 |
| 13 | 5477 |
| 14 | 6653 |
| 15 | 8453 |
| 16 | 10501 |
| 17 | 15125 |
| 18 | 17069 |
| 19 | 23567 |
| 20 | 26767 |
| 21 | 32059 |
| 22 | 36899 |
| 23 | 48537 |
| 24 | 53145 |
| 25 | 65645 |
| 26 | 73757 |
| 27 | 86879 |
| 28 | 96287 |
| 29 | 119835 |
| 30 | 127035 |
| 31 | 155865 |
| 32 | 172249 |
| 33 | 194029 |
| 34 | 212525 |
| 35 | 241925 |
| 36 | 257477 |
| 37 | 306761 |
| 38 | 332753 |
| 39 | 369257 |