The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 18 |
| 7 | 64 |
| 8 | 34 |
| 9 | 36 |
| 10 | 66 |
| 11 | 1024 |
| 12 | 68 |
| 13 | 4096 |
| 14 | 258 |
| 15 | 132 |
| 16 | 136 |
| 17 | 65536 |
| 18 | 146 |
| 19 | 262144 |
| 20 | 264 |
| 21 | 516 |
| 22 | 4098 |
[1,2,4,8,16,18,64,34,36,66,1024,68,4096,258,132, 136,65536,146,262144,264,516,4098] |