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A122109 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 14 |
| 4 | 46 |
| 5 | 102 |
| 6 | 358 |
| 7 | 734 |
| 8 | 2814 |
| 9 | 5174 |
| 10 | 22390 |
| 11 | 35310 |
| 12 | 180814 |
| 13 | 228230 |
| 14 | 1486086 |
| 15 | 1330814 |
| 16 | 12461854 |
| 17 | 6032982 |
| 18 | 106833430 |
| 19 | 4449422 |
| 20 | 937368942 |
| 21 | -387288922 |
| 22 | 8418522790 |
| 23 | -7235076066 |
| 24 | 77315860798 |
| 25 | -98789775754 |
| 26 | 724783051446 |
| 27 | -1198371424978 |
| 28 | 6918206566030 |
| 29 | -13684475030586 |
[1,2,6,14,46,102,358,734,2814,5174,22390,35310, 180814,228230,1486086,1330814,12461854,6032982, 106833430,4449422,937368942,-387288922,8418522790, -7235076066,77315860798,-98789775754,724783051446, -1198371424978,6918206566030,-13684475030586] |