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| n | a(n) |
|---|---|
| 0 | 945 |
| 1 | 6 |
| 2 | 20 |
| 3 | 88 |
| 4 | 272 |
| 5 | 1184 |
| 6 | 4288 |
| 7 | 16768 |
| 8 | 65792 |
| 9 | 266752 |
| 10 | 1055744 |
| 11 | 4204544 |
| 12 | 16789504 |
| 13 | 67248128 |
| 14 | 268877824 |
| 15 | 1073840128 |
| 16 | 4295032832 |
| 17 | 17183670272 |
| 18 | 68720263168 |
| 19 | 274888916992 |
| 20 | 1099518967808 |
| 21 | 4398082162688 |
| 22 | 17592248958976 |
[945,6,20,88,272,1184,4288,16768,65792,266752, 1055744,4204544,16789504,67248128,268877824, 1073840128,4295032832,17183670272,68720263168, 274888916992,1099518967808,4398082162688, 17592248958976] |