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) |
|---|---|
| 1 | 151 |
| 2 | 251 |
| 3 | 701 |
| 4 | 1951 |
| 5 | 3001 |
| 6 | 4751 |
| 7 | 10151 |
| 8 | 12401 |
| 9 | 16651 |
| 10 | 19501 |
| 11 | 28201 |
| 12 | 29401 |
| 13 | 33151 |
| 14 | 38501 |
| 15 | 39901 |
| 16 | 45751 |
| 17 | 56951 |
| 18 | 63901 |
| 19 | 65701 |
| 20 | 81001 |
| 21 | 87151 |
| 22 | 95701 |
| 23 | 104651 |
| 24 | 114001 |
| 25 | 136501 |
| 26 | 144451 |
| 27 | 147151 |
| 28 | 158201 |
| 29 | 178501 |
| 30 | 181501 |
| 31 | 193751 |
| 32 | 219451 |
| 33 | 232901 |
| 34 | 257401 |
| 35 | 275651 |
| 36 | 290701 |
| 37 | 318001 |
| 38 | 322001 |