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 | 4 |
| 4 | 11 |
| 5 | 16 |
| 6 | 33 |
| 7 | 48 |
| 8 | 89 |
| 9 | 134 |
| 10 | 214 |
| 11 | 305 |
| 12 | 478 |
| 13 | 663 |
| 14 | 976 |
| 15 | 1356 |
| 16 | 1934 |
| 17 | 2617 |
| 18 | 3654 |
| 19 | 4877 |
| 20 | 6652 |
| 21 | 8808 |
| 22 | 11772 |
| 23 | 15386 |
| 24 | 20329 |
| 25 | 26308 |
| 26 | 34249 |
| 27 | 43987 |
| 28 | 56651 |
| 29 | 72079 |
| 30 | 92008 |
| 31 | 116171 |
| 32 | 146967 |
| 33 | 184381 |
| 34 | 231399 |
| 35 | 288398 |
| 36 | 359581 |
| 37 | 445426 |
| 38 | 551721 |
| 39 | 679868 |
| 40 | 837238 |
| 41 | 1026256 |