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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 24 |
| 4 | 76 |
| 5 | 288 |
| 6 | 1072 |
| 7 | 4224 |
| 8 | 16576 |
| 9 | 66048 |
| 10 | 262912 |
| 11 | 1050624 |
| 12 | 4197376 |
| 13 | 16785408 |
| 14 | 67121152 |
| 15 | 268468224 |
| 16 | 1073790976 |
| 17 | 4295098368 |
| 18 | 17180065792 |
| 19 | 68720001024 |
| 20 | 274878693376 |
| 21 | 1099513724928 |
| 22 | 4398049656832 |
| 23 | 17592194433024 |
| 24 | 70368756760576 |
[3,6,24,76,288,1072,4224,16576,66048,262912, 1050624,4197376,16785408,67121152,268468224, 1073790976,4295098368,17180065792,68720001024, 274878693376,1099513724928,4398049656832, 17592194433024,70368756760576] |