The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 65537 |
| 3 | 43046722 |
| 4 | 4294967297 |
| 5 | 152587890626 |
| 6 | 2821109907457 |
| 7 | 33232930569602 |
| 8 | 281474976710657 |
| 9 | 1853020188851842 |
| 10 | 10000000000000001 |
| 11 | 45949729863572162 |
| 12 | 184884258895036417 |
| 13 | 665416609183179842 |
| 14 | 2177953337809371137 |
| 15 | 6568408355712890626 |
[1,2,65537,43046722,4294967297,152587890626, 2821109907457,33232930569602,281474976710657, 1853020188851842,10000000000000001, 45949729863572162,184884258895036417, 665416609183179842,2177953337809371137, 6568408355712890626] |