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 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 0 |
| 5 | 5 |
| 6 | -2 |
| 7 | -4 |
| 8 | 1 |
| 9 | 1 |
| 10 | -2 |
| 11 | 2 |
| 12 | 17 |
| 13 | -9 |
| 14 | -32 |
| 15 | 12 |
| 16 | 24 |
| 17 | -6 |
| 18 | -8 |
| 19 | 1 |
| 20 | 1 |
| 21 | -2 |
| 22 | 0 |
| 23 | 31 |
| 24 | -12 |
| 25 | -121 |
| 26 | 52 |
| 27 | 187 |
| 28 | -67 |
| 29 | -143 |
| 30 | 38 |
| 31 | 58 |
| 32 | -10 |
| 33 | -12 |
| 34 | 1 |
| 35 | 1 |
| 36 | -3 |
| 37 | 3 |
| 38 | 64 |
| 39 | -37 |
| 40 | -357 |
| 41 | 168 |
| 42 | 883 |
| 43 | -361 |
| 44 | -1154 |
| 45 | 397 |
| 46 | 875 |
| 47 | -239 |
| 48 | -399 |
| 49 | 80 |
| 50 | 108 |
| 51 | -14 |
| 52 | -16 |
| 53 | 1 |
| 54 | 1 |
| 55 | -3 |
| 56 | 0 |
| 57 | 94 |
| 58 | -36 |
| 59 | -808 |
| 60 | 366 |
| 61 | 3019 |
| 62 | -1312 |
| 63 | -6023 |
| 64 | 2351 |
| 65 | 7182 |
| 66 | -2415 |
| 67 | -5439 |
| 68 | 1512 |
| 69 | 2686 |
| 70 | -587 |
| 71 | -863 |
| 72 | 138 |
| 73 | 174 |
| 74 | -18 |
| 75 | -20 |
| 76 | 1 |
| 77 | 1 |
| 78 | -4 |
| 79 | 4 |
| 80 | 158 |
| 81 | -94 |
| 82 | -1720 |
| 83 | 856 |
| 84 | 8611 |
| 85 | -3923 |
| 86 | -23883 |
| 87 | 10003 |
| 88 | 40648 |
| 89 | -15328 |
| 90 | -45241 |
| 91 | 14957 |
| 92 | 34203 |
| 93 | -9623 |
| 94 | -17893 |
| 95 | 4135 |
| 96 | 6485 |
| 97 | -1175 |
| 98 | -1599 |
| 99 | 212 |
| 100 | 256 |
| 101 | -22 |
| 102 | -24 |
| 103 | 1 |
| 104 | 1 |