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 | 5 |
| 2 | 29 |
| 3 | 193 |
| 4 | 557 |
| 5 | 751 |
| 6 | 3307 |
| 7 | 4999 |
| 8 | 7499 |
| 9 | 16693 |
| 10 | 20807 |
| 11 | 31249 |
| 12 | 59999 |
| 13 | 60443 |
| 14 | 79193 |
| 15 | 812501 |
| 16 | 918751 |
| 17 | 5422943 |
| 18 | 46295807 |
| 19 | 55781249 |
| 20 | 74218751 |
| 21 | 78281249 |
| 22 | 89218751 |
| 23 | 89999999 |
| 24 | 282922943 |
| 25 | 316295807 |
| 26 | 674218751 |
| 27 | 1583704193 |
| 28 | 3824218751 |
| 29 | 3958704193 |
| 30 | 4092077057 |
| 31 | 6342077057 |
| 32 | 8324218751 |
| 33 | 31666295807 |
| 34 | 47779577057 |
| 35 | 64478795807 |
| 36 | 66666295807 |
| 37 | 75000000001 |