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 | 10 |
| 2 | 84 |
| 3 | 286 |
| 4 | 680 |
| 5 | 1330 |
| 6 | 2300 |
| 7 | 3654 |
| 8 | 5456 |
| 9 | 7770 |
| 10 | 10660 |
| 11 | 14190 |
| 12 | 18424 |
| 13 | 23426 |
| 14 | 29260 |
| 15 | 35990 |
| 16 | 43680 |
| 17 | 52394 |
| 18 | 62196 |
| 19 | 73150 |
| 20 | 85320 |
| 21 | 98770 |
| 22 | 113564 |
| 23 | 129766 |
| 24 | 147440 |
| 25 | 166650 |
| 26 | 187460 |
| 27 | 209934 |
| 28 | 234136 |
| 29 | 260130 |
| 30 | 287980 |
| 31 | 317750 |
| 32 | 349504 |
| 33 | 383306 |
| 34 | 419220 |
| 35 | 457310 |
| 36 | 497640 |
| 37 | 540274 |
| 38 | 585276 |
| 39 | 632710 |
| 40 | 682640 |
| 41 | 735130 |
| 42 | 790244 |