The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 1 |
| 4 | 11 |
| 5 | 1 |
| 6 | 43 |
| 7 | 1 |
| 8 | 171 |
| 9 | 1 |
| 10 | 683 |
| 11 | 1 |
| 12 | 2731 |
| 13 | 1 |
| 14 | 10923 |
| 15 | 1 |
| 16 | 43691 |
| 17 | 1 |
| 18 | 174763 |
| 19 | 1 |
| 20 | 699051 |
| 21 | 1 |
| 22 | 2796203 |
| 23 | 1 |
| 24 | 11184811 |
| 25 | 1 |
| 26 | 44739243 |
| 27 | 1 |
| 28 | 178956971 |
| 29 | 1 |
| 30 | 715827883 |
| 31 | 1 |
| 32 | 2863311531 |
| 33 | 1 |
| 34 | 11453246123 |
| 35 | 1 |
| 36 | 45812984491 |
| 37 | 1 |
| 38 | 183251937963 |
| 39 | 1 |
| 40 | 733007751851 |
| 41 | 1 |
[1,1,3,1,11,1,43,1,171,1,683,1,2731,1,10923,1, 43691,1,174763,1,699051,1,2796203,1,11184811,1, 44739243,1,178956971,1,715827883,1,2863311531,1, 11453246123,1,45812984491,1,183251937963,1, 733007751851,1] |