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 | 3 |
| 3 | 7 |
| 4 | 14 |
| 5 | 25 |
| 6 | 43 |
| 7 | 69 |
| 8 | 110 |
| 9 | 167 |
| 10 | 255 |
| 11 | 375 |
| 12 | 558 |
| 13 | 805 |
| 14 | 1179 |
| 15 | 1681 |
| 16 | 2438 |
| 17 | 3451 |
| 18 | 4975 |
| 19 | 7011 |
| 20 | 10070 |
| 21 | 14153 |
| 22 | 20283 |
| 23 | 28461 |
| 24 | 40734 |
| 25 | 57103 |
| 26 | 81663 |
| 27 | 114415 |
| 28 | 163550 |
| 29 | 229069 |
| 30 | 327355 |
| 31 | 458409 |
| 32 | 654998 |
| 33 | 917123 |
| 34 | 1310319 |
| 35 | 1834587 |
| 36 | 2620998 |
| 37 | 3669553 |
| 38 | 5242395 |
| 39 | 7339525 |
| 40 | 10485230 |