The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 8 |
| 4 | 20 |
| 5 | 48 |
| 6 | 64 |
| 7 | 144 |
| 8 | 320 |
| 9 | 384 |
| 10 | 832 |
| 11 | 1792 |
| 12 | 2048 |
| 13 | 4352 |
| 14 | 9216 |
| 15 | 10240 |
| 16 | 21504 |
| 17 | 45056 |
| 18 | 49152 |
| 19 | 102400 |
| 20 | 212992 |
| 21 | 229376 |
| 22 | 475136 |
| 23 | 983040 |
| 24 | 1048576 |
| 25 | 2162688 |
| 26 | 4456448 |
| 27 | 4718592 |
| 28 | 9699328 |
| 29 | 19922944 |
| 30 | 20971520 |
| 31 | 42991616 |
| 32 | 88080384 |
| 33 | 92274688 |
| 34 | 188743680 |
[1,4,8,20,48,64,144,320,384,832,1792,2048,4352, 9216,10240,21504,45056,49152,102400,212992,229376, 475136,983040,1048576,2162688,4456448,4718592, 9699328,19922944,20971520,42991616,88080384, 92274688,188743680] |