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 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 23 |
| 6 | 41 |
| 7 | 65 |
| 8 | 102 |
| 9 | 156 |
| 10 | 234 |
| 11 | 340 |
| 12 | 495 |
| 13 | 697 |
| 14 | 982 |
| 15 | 1359 |
| 16 | 1864 |
| 17 | 2523 |
| 18 | 3408 |
| 19 | 4536 |
| 20 | 6022 |
| 21 | 7918 |
| 22 | 10365 |
| 23 | 13457 |
| 24 | 17423 |
| 25 | 22380 |
| 26 | 28666 |
| 27 | 36498 |
| 28 | 46318 |
| 29 | 58466 |
| 30 | 73617 |
| 31 | 92221 |
| 32 | 115236 |
| 33 | 143402 |
| 34 | 177984 |
| 35 | 220086 |
| 36 | 271524 |
| 37 | 333810 |
| 38 | 409490 |
| 39 | 500804 |
| 40 | 611149 |
| 41 | 743728 |
| 42 | 903296 |