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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 10 |
| 6 | 19 |
| 7 | 41 |
| 8 | 94 |
| 9 | 211 |
| 10 | 493 |
| 11 | 1170 |
| 12 | 2787 |
| 13 | 6713 |
| 14 | 16274 |
| 15 | 39651 |
| 16 | 97109 |
| 17 | 238838 |
| 18 | 589527 |
| 19 | 1459961 |
| 20 | 3626242 |
| 21 | 9030451 |
| 22 | 22542397 |
| 23 | 56393862 |
| 24 | 141358275 |
| 25 | 354975433 |
| 26 | 892893262 |
| 27 | 2249412291 |
| 28 | 5674891017 |
| 29 | 14335757586 |
| 30 | 36259245523 |
| 31 | 91815545801 |
| 32 | 232745229290 |
| 33 | 590586152235 |
| 34 | 1500020153485 |
| 35 | 3813274653414 |