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 | 10 |
| 2 | 54 |
| 3 | 211 |
| 4 | 669 |
| 5 | 1827 |
| 6 | 4456 |
| 7 | 9942 |
| 8 | 20637 |
| 9 | 40348 |
| 10 | 74999 |
| 11 | 133506 |
| 12 | 228910 |
| 13 | 379818 |
| 14 | 612207 |
| 15 | 961652 |
| 16 | 1476045 |
| 17 | 2218878 |
| 18 | 3273169 |
| 19 | 4746115 |
| 20 | 6774561 |
| 21 | 9531380 |
| 22 | 13232864 |
| 23 | 18147232 |
| 24 | 24604366 |
| 25 | 33006891 |
| 26 | 43842720 |
| 27 | 57699190 |
| 28 | 75278921 |
| 29 | 97417535 |
| 30 | 125103378 |
| 31 | 159499393 |
| 32 | 201967298 |
| 33 | 254094228 |
| 34 | 317722005 |
| 35 | 394979205 |
| 36 | 488316197 |
| 37 | 600543335 |
| 38 | 734872490 |