The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 17 |
| 3 | 29 |
| 4 | 53 |
| 5 | 101 |
| 6 | 197 |
| 7 | 389 |
| 8 | 773 |
| 9 | 49157 |
| 10 | 196613 |
| 11 | 1572869 |
| 12 | 12582917 |
| 13 | 50331653 |
| 14 | 402653189 |
| 15 | 1610612741 |
| 16 | 12884901893 |
| 17 | 824633720837 |
| 18 | 54043195528445957 |
| 19 | 432345564227567621 |
| 20 | 3458764513820540933 |
| 21 | 226673591177742970257413 |
| 22 | 59421121885698253195157962757 |
[11,17,29,53,101,197,389,773,49157,196613,1572869, 12582917,50331653,402653189,1610612741, 12884901893,824633720837,54043195528445957, 432345564227567621,3458764513820540933, 226673591177742970257413, 59421121885698253195157962757] |