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 | 3 |
| 1 | 35 |
| 2 | 99 |
| 3 | 195 |
| 4 | 323 |
| 5 | 483 |
| 6 | 675 |
| 7 | 899 |
| 8 | 1155 |
| 9 | 1443 |
| 10 | 1763 |
| 11 | 2115 |
| 12 | 2499 |
| 13 | 2915 |
| 14 | 3363 |
| 15 | 3843 |
| 16 | 4355 |
| 17 | 4899 |
| 18 | 5475 |
| 19 | 6083 |
| 20 | 6723 |
| 21 | 7395 |
| 22 | 8099 |
| 23 | 8835 |
| 24 | 9603 |
| 25 | 10403 |
| 26 | 11235 |
| 27 | 12099 |
| 28 | 12995 |
| 29 | 13923 |
| 30 | 14883 |
| 31 | 15875 |
| 32 | 16899 |
| 33 | 17955 |
| 34 | 19043 |
| 35 | 20163 |
| 36 | 21315 |
| 37 | 22499 |
| 38 | 23715 |
| 39 | 24963 |
| 40 | 26243 |
| 41 | 27555 |
| 42 | 28899 |