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 | 6 |
| 3 | 22 |
| 4 | 61 |
| 5 | 142 |
| 6 | 292 |
| 7 | 548 |
| 8 | 958 |
| 9 | 1583 |
| 10 | 2498 |
| 11 | 3794 |
| 12 | 5579 |
| 13 | 7980 |
| 14 | 11144 |
| 15 | 15240 |
| 16 | 20460 |
| 17 | 27021 |
| 18 | 35166 |
| 19 | 45166 |
| 20 | 57321 |
| 21 | 71962 |
| 22 | 89452 |
| 23 | 110188 |
| 24 | 134602 |
| 25 | 163163 |
| 26 | 196378 |
| 27 | 234794 |
| 28 | 278999 |
| 29 | 329624 |
| 30 | 387344 |
| 31 | 452880 |