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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 9 |
| 9 | 18 |
| 10 | 27 |
| 11 | 36 |
| 12 | 45 |
| 13 | 54 |
| 14 | 63 |
| 15 | 73 |
| 16 | 146 |
| 17 | 219 |
| 18 | 292 |
| 19 | 365 |
| 20 | 438 |
| 21 | 511 |
| 22 | 585 |
| 23 | 1170 |
| 24 | 1755 |
| 25 | 2340 |
| 26 | 2925 |
| 27 | 3510 |
| 28 | 4095 |
| 29 | 4681 |
| 30 | 9362 |
| 31 | 14043 |
| 32 | 18724 |
| 33 | 23405 |
| 34 | 28086 |
| 35 | 32767 |
| 36 | 37449 |
| 37 | 74898 |
| 38 | 112347 |
| 39 | 149796 |
| 40 | 187245 |
| 41 | 224694 |
| 42 | 262143 |
| 43 | 299593 |
| 44 | 599186 |
| 45 | 898779 |