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 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 13 |
| 5 | 19 |
| 6 | 26 |
| 7 | 37 |
| 8 | 53 |
| 9 | 74 |
| 10 | 103 |
| 11 | 145 |
| 12 | 204 |
| 13 | 285 |
| 14 | 399 |
| 15 | 560 |
| 16 | 785 |
| 17 | 1099 |
| 18 | 1540 |
| 19 | 2159 |
| 20 | 3025 |
| 21 | 4238 |
| 22 | 5939 |
| 23 | 8323 |
| 24 | 11662 |
| 25 | 16341 |
| 26 | 22899 |
| 27 | 32088 |
| 28 | 44963 |
| 29 | 63005 |
| 30 | 88288 |
| 31 | 123715 |
| 32 | 173357 |
| 33 | 242920 |
| 34 | 340397 |
| 35 | 476987 |
| 36 | 668386 |
| 37 | 936589 |
| 38 | 1312413 |
| 39 | 1839042 |
| 40 | 2576991 |
| 41 | 3611057 |
| 42 | 5060060 |
| 43 | 7090501 |
| 44 | 9935695 |
| 45 | 13922576 |
| 46 | 19509265 |
| 47 | 27337715 |