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 | 9 |
| 2 | 44 |
| 3 | 155 |
| 4 | 440 |
| 5 | 1068 |
| 6 | 2298 |
| 7 | 4489 |
| 8 | 8095 |
| 9 | 13640 |
| 10 | 21670 |
| 11 | 32683 |
| 12 | 47043 |
| 13 | 64889 |
| 14 | 86054 |
| 15 | 110010 |
| 16 | 135853 |
| 17 | 162337 |
| 18 | 187959 |
| 19 | 211089 |
| 20 | 230131 |
| 21 | 243694 |
| 22 | 250749 |
| 23 | 250749 |
| 24 | 243694 |
| 25 | 230131 |
| 26 | 211089 |
| 27 | 187959 |
| 28 | 162337 |
| 29 | 135853 |
| 30 | 110010 |
| 31 | 86054 |
| 32 | 64889 |
| 33 | 47043 |
| 34 | 32683 |
| 35 | 21670 |
| 36 | 13640 |
| 37 | 8095 |
| 38 | 4489 |
| 39 | 2298 |
| 40 | 1068 |
| 41 | 440 |
| 42 | 155 |
| 43 | 44 |
| 44 | 9 |
| 45 | 1 |