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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 23 |
| 9 | 39 |
| 10 | 55 |
| 11 | 71 |
| 12 | 87 |
| 13 | 103 |
| 14 | 359 |
| 15 | 615 |
| 16 | 871 |
| 17 | 1127 |
| 18 | 1383 |
| 19 | 1639 |
| 20 | 5735 |
| 21 | 9831 |
| 22 | 13927 |
| 23 | 18023 |
| 24 | 22119 |
| 25 | 26215 |
| 26 | 91751 |
| 27 | 157287 |
| 28 | 222823 |
| 29 | 288359 |
| 30 | 353895 |
| 31 | 419431 |
| 32 | 1468007 |
| 33 | 2516583 |
| 34 | 3565159 |
| 35 | 4613735 |
| 36 | 5662311 |
| 37 | 6710887 |
| 38 | 23488103 |
| 39 | 40265319 |
| 40 | 57042535 |
| 41 | 73819751 |