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) |
|---|---|
| 42 | 1 |
| 43 | 43 |
| 44 | 946 |
| 45 | 14190 |
| 46 | 163185 |
| 47 | 1533939 |
| 48 | 12271512 |
| 49 | 85900584 |
| 50 | 536878650 |
| 51 | 3042312350 |
| 52 | 15820024220 |
| 53 | 76223753060 |
| 54 | 343006888770 |
| 55 | 1451182990950 |
| 56 | 5804731963800 |
| 57 | 22057981462440 |
| 58 | 79960182801345 |
| 59 | 277508869722315 |
| 60 | 925029565741050 |
| 61 | 2969831763694950 |
| 62 | 9206478467454345 |