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| n | a(n) |
|---|---|
| 0 | 7 |
| 1 | 23 |
| 2 | 76 |
| 3 | 284 |
| 4 | 1072 |
| 5 | 4208 |
| 6 | 16576 |
| 7 | 65984 |
| 8 | 262912 |
| 9 | 1050368 |
| 10 | 4197376 |
| 11 | 16784384 |
| 12 | 67121152 |
| 13 | 268464128 |
| 14 | 1073790976 |
| 15 | 4295081984 |
| 16 | 17180065792 |
| 17 | 68719935488 |
| 18 | 274878693376 |
| 19 | 1099513462784 |
| 20 | 4398049656832 |
| 21 | 17592193384448 |
| 22 | 70368756760576 |
| 23 | 281475006070784 |
| 24 | 1125899957174272 |
[7,23,76,284,1072,4208,16576,65984,262912,1050368, 4197376,16784384,67121152,268464128,1073790976, 4295081984,17180065792,68719935488,274878693376, 1099513462784,4398049656832,17592193384448, 70368756760576,281475006070784,1125899957174272] |