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) |
|---|---|
| 7 | 1 |
| 8 | 3 |
| 9 | 11 |
| 10 | 29 |
| 11 | 74 |
| 12 | 167 |
| 13 | 367 |
| 14 | 755 |
| 15 | 1515 |
| 16 | 2931 |
| 17 | 5551 |
| 18 | 10263 |
| 19 | 18677 |
| 20 | 33409 |
| 21 | 59024 |
| 22 | 102984 |
| 23 | 177915 |
| 24 | 304458 |
| 25 | 516939 |
| 26 | 871180 |
| 27 | 1458882 |
| 28 | 2428548 |
| 29 | 4021670 |
| 30 | 6627515 |
| 31 | 10874462 |
| 32 | 17770474 |
| 33 | 28932739 |
| 34 | 46943967 |
| 35 | 75925797 |
| 36 | 122433291 |
| 37 | 196879385 |
| 38 | 315759282 |
| 39 | 505168033 |
| 40 | 806290796 |
| 41 | 1284034606 |
| 42 | 2040485004 |
| 43 | 3235965074 |
| 44 | 5121801962 |
| 45 | 8091411114 |
| 46 | 12759606939 |
| 47 | 20085832527 |
| 48 | 31565046053 |
| 49 | 49523414558 |
| 50 | 77575278933 |
| 51 | 121329065354 |
| 52 | 189475663960 |
| 53 | 295465391518 |
| 54 | 460087656595 |
| 55 | 715436020515 |
| 56 | 1110994054004 |