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 | 15 |
| 43 | 147 |
| 44 | 1003 |
| 45 | 5286 |
| 46 | 24396 |
| 47 | 101768 |
| 48 | 395410 |
| 49 | 1452251 |
| 50 | 5104104 |
| 51 | 17300428 |
| 52 | 56912396 |
| 53 | 182543809 |
| 54 | 573014123 |
| 55 | 1765525901 |
| 56 | 5352351017 |
| 57 | 15996845972 |
| 58 | 47213204699 |
| 59 | 137795770991 |
| 60 | 398168121417 |
| 61 | 1140238386377 |
| 62 | 3238947787201 |
| 63 | 9133172049405 |
| 64 | 25582174762816 |
| 65 | 71220487524663 |