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 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 17 |
| 5 | 28 |
| 6 | 129 |
| 7 | 260 |
| 8 | 411 |
| 9 | 592 |
| 10 | 783 |
| 11 | 1096 |
| 12 | 1449 |
| 13 | 1822 |
| 14 | 2205 |
| 15 | 2932 |
| 16 | 3689 |
| 17 | 4476 |
| 18 | 5273 |
| 19 | 6192 |
| 20 | 7121 |
| 21 | 17422 |
| 22 | 27923 |
| 23 | 38524 |
| 24 | 49835 |
| 25 | 61246 |
| 26 | 73667 |
| 27 | 86388 |
| 28 | 99209 |
| 29 | 112540 |
| 30 | 126371 |
| 31 | 140302 |
| 32 | 154643 |
| 33 | 169384 |
| 34 | 184835 |
| 35 | 200386 |
| 36 | 216447 |
| 37 | 232808 |
| 38 | 249369 |
| 39 | 266030 |
| 40 | 283501 |