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 | 5 |
| 3 | 6 |
| 4 | 16 |
| 5 | 13 |
| 6 | 36 |
| 7 | 31 |
| 8 | 74 |
| 9 | 87 |
| 10 | 155 |
| 11 | 201 |
| 12 | 402 |
| 13 | 523 |
| 14 | 911 |
| 15 | 1398 |
| 16 | 2339 |
| 17 | 3573 |
| 18 | 5997 |
| 19 | 9351 |
| 20 | 15438 |
| 21 | 24546 |
| 22 | 40011 |
| 23 | 64081 |
| 24 | 104544 |
| 25 | 167786 |
| 26 | 272495 |
| 27 | 439372 |
| 28 | 712452 |
| 29 | 1149853 |
| 30 | 1863588 |
| 31 | 3010351 |
| 32 | 4875451 |
| 33 | 7881606 |
| 34 | 12759195 |
| 35 | 20633323 |
| 36 | 33397854 |
| 37 | 54018523 |
| 38 | 87422511 |
| 39 | 141423378 |