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 | 6 |
| 2 | -12 |
| 3 | -6 |
| 4 | 6 |
| 5 | -12 |
| 6 | -12 |
| 7 | 96 |
| 8 | 24 |
| 9 | -134 |
| 10 | -192 |
| 11 | 114 |
| 12 | 736 |
| 13 | 282 |
| 14 | -792 |
| 15 | -1532 |
| 16 | -270 |
| 17 | 1932 |
| 18 | 2004 |
| 19 | -96 |
| 20 | -3654 |
| 21 | -6910 |
| 22 | -5532 |
| 23 | 4836 |
| 24 | 21500 |
| 25 | 23454 |
| 26 | 11850 |
| 27 | -8216 |
| 28 | -43998 |
| 29 | -57744 |
| 30 | -34424 |
| 31 | 16716 |
| 32 | 73506 |
| 33 | 105500 |
| 34 | 87432 |
| 35 | -24474 |
| 36 | -230028 |
| 37 | -331626 |
| 38 | -257616 |
| 39 | -163250 |
| 40 | 316434 |
| 41 | 852450 |
| 42 | 1130284 |
| 43 | 1175748 |
| 44 | 361110 |
| 45 | -652820 |
| 46 | -1956330 |
| 47 | -2964180 |
| 48 | -2922288 |
| 49 | -1965174 |
| 50 | 187806 |
| 51 | 3863602 |
| 52 | 6585672 |
| 53 | 6996900 |
| 54 | 6199180 |
| 55 | 366768 |
| 56 | -7228866 |
| 57 | -14682152 |
| 58 | -21063366 |
| 59 | -19602108 |
| 60 | -10562926 |
| 61 | 6959976 |
| 62 | 30061386 |
| 63 | 50110338 |
| 64 | 66753126 |
| 65 | 68131632 |
| 66 | 37666392 |