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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 6 |
| 3 | 8 |
| 4 | 14 |
| 5 | 24 |
| 6 | 62 |
| 7 | 120 |
| 8 | 254 |
| 9 | 504 |
| 10 | 1022 |
| 11 | 2040 |
| 12 | 4094 |
| 13 | 8184 |
| 14 | 16382 |
| 15 | 32760 |
| 16 | 65534 |
| 17 | 131064 |
| 18 | 262142 |
| 19 | 524280 |
| 20 | 1048574 |
| 21 | 2097144 |
| 22 | 4194302 |
| 23 | 8388600 |
| 24 | 16777214 |
| 25 | 33554424 |
| 26 | 67108862 |
| 27 | 134217720 |
| 28 | 268435454 |
| 29 | 536870904 |
| 30 | 1073741822 |
| 31 | 2147483640 |
| 32 | 4294967294 |
| 33 | 8589934584 |
[1,0,6,8,14,24,62,120,254,504,1022,2040,4094,8184, 16382,32760,65534,131064,262142,524280,1048574, 2097144,4194302,8388600,16777214,33554424, 67108862,134217720,268435454,536870904,1073741822, 2147483640,4294967294,8589934584] |