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 | 4 |
| 2 | 14 |
| 3 | 30 |
| 4 | 52 |
| 5 | 80 |
| 6 | 114 |
| 7 | 154 |
| 8 | 200 |
| 9 | 252 |
| 10 | 310 |
| 11 | 374 |
| 12 | 444 |
| 13 | 520 |
| 14 | 602 |
| 15 | 690 |
| 16 | 784 |
| 17 | 884 |
| 18 | 990 |
| 19 | 1102 |
| 20 | 1220 |
| 21 | 1344 |
| 22 | 1474 |
| 23 | 1610 |
| 24 | 1752 |
| 25 | 1900 |
| 26 | 2054 |
| 27 | 2214 |
| 28 | 2380 |
| 29 | 2552 |
| 30 | 2730 |
| 31 | 2914 |
| 32 | 3104 |
| 33 | 3300 |
| 34 | 3502 |
| 35 | 3710 |
| 36 | 3924 |
| 37 | 4144 |
| 38 | 4370 |
| 39 | 4602 |
| 40 | 4840 |
| 41 | 5084 |
| 42 | 5334 |
| 43 | 5590 |
| 44 | 5852 |
| 45 | 6120 |
| 46 | 6394 |
| 47 | 6674 |
| 48 | 6960 |
| 49 | 7252 |
| 50 | 7550 |
| 51 | 7854 |