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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 7 |
| 7 | 22 |
| 8 | 57 |
| 9 | 127 |
| 10 | 254 |
| 11 | 474 |
| 12 | 859 |
| 13 | 1574 |
| 14 | 3004 |
| 15 | 6008 |
| 16 | 12393 |
| 17 | 25773 |
| 18 | 53143 |
| 19 | 107883 |
| 20 | 215766 |
| 21 | 427351 |
| 22 | 843756 |
| 23 | 1669801 |
| 24 | 3321891 |
| 25 | 6643782 |
| 26 | 13333932 |
| 27 | 26789257 |
| 28 | 53774932 |
| 29 | 107746282 |
| 30 | 215492564 |
| 31 | 430470899 |
| 32 | 859595529 |
| 33 | 1717012749 |
| 34 | 3431847189 |
| 35 | 6863694378 |