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 | 1 |
| 1 | 4 |
| 2 | 13 |
| 3 | 36 |
| 4 | 87 |
| 5 | 190 |
| 6 | 386 |
| 7 | 734 |
| 8 | 1324 |
| 9 | 2284 |
| 10 | 3790 |
| 11 | 6080 |
| 12 | 9473 |
| 13 | 14378 |
| 14 | 21323 |
| 15 | 30974 |
| 16 | 44159 |
| 17 | 61898 |
| 18 | 85440 |
| 19 | 116286 |
| 20 | 156240 |
| 21 | 207446 |
| 22 | 272432 |
| 23 | 354162 |
| 24 | 456097 |
| 25 | 582238 |
| 26 | 737205 |
| 27 | 926298 |
| 28 | 1155567 |
| 29 | 1431892 |
| 30 | 1763074 |
| 31 | 2157904 |
| 32 | 2626276 |
| 33 | 3179278 |
| 34 | 3829294 |
| 35 | 4590118 |
| 36 | 5477081 |