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) |
|---|---|
| 1 | 499999 |
| 2 | 166666 |
| 3 | 66666 |
| 4 | 38094 |
| 5 | 20778 |
| 6 | 15983 |
| 7 | 11283 |
| 8 | 9502 |
| 9 | 7434 |
| 10 | 5646 |
| 11 | 5098 |
| 12 | 4136 |
| 13 | 3617 |
| 14 | 3356 |
| 15 | 2982 |
| 16 | 2575 |
| 17 | 2261 |
| 18 | 2143 |
| 19 | 1910 |
| 20 | 1775 |
| 21 | 1700 |
| 22 | 1553 |
| 23 | 1460 |
| 24 | 1354 |
| 25 | 1244 |
| 26 | 1195 |
| 27 | 1171 |
| 28 | 1130 |
| 29 | 1109 |
| 30 | 1074 |
| 31 | 964 |
| 32 | 937 |
| 33 | 898 |
| 34 | 886 |
| 35 | 832 |
| 36 | 820 |
| 37 | 794 |
| 38 | 763 |
| 39 | 745 |
| 40 | 719 |
| 41 | 697 |
| 42 | 689 |
| 43 | 654 |