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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 8 |
| 3 | 22 |
| 4 | 64 |
| 5 | 181 |
| 6 | 512 |
| 7 | 1448 |
| 8 | 4096 |
| 9 | 11585 |
| 10 | 32768 |
| 11 | 92681 |
| 12 | 262144 |
| 13 | 741455 |
| 14 | 2097152 |
| 15 | 5931641 |
| 16 | 16777216 |
| 17 | 47453132 |
| 18 | 134217728 |
| 19 | 379625062 |
| 20 | 1073741824 |
| 21 | 3037000499 |
| 22 | 8589934592 |
| 23 | 24296003999 |
| 24 | 68719476736 |
[1,2,8,22,64,181,512,1448,4096,11585,32768,92681, 262144,741455,2097152,5931641,16777216,47453132, 134217728,379625062,1073741824,3037000499, 8589934592,24296003999,68719476736] |