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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 16 |
| 3 | 96 |
| 4 | 512 |
| 5 | 2560 |
| 6 | 12288 |
| 7 | 57344 |
| 8 | 262144 |
| 9 | 1179648 |
| 10 | 5242880 |
| 11 | 23068672 |
| 12 | 100663296 |
| 13 | 436207616 |
| 14 | 1879048192 |
| 15 | 8053063680 |
| 16 | 34359738368 |
| 17 | 146028888064 |
| 18 | 618475290624 |
| 19 | 2611340115968 |
| 20 | 10995116277760 |
| 21 | 46179488366592 |
| 22 | 193514046488576 |
[0,2,16,96,512,2560,12288,57344,262144,1179648, 5242880,23068672,100663296,436207616,1879048192, 8053063680,34359738368,146028888064,618475290624, 2611340115968,10995116277760,46179488366592, 193514046488576] |