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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 33 |
| 3 | 161 |
| 4 | 729 |
| 5 | 3137 |
| 6 | 13153 |
| 7 | 54113 |
| 8 | 216817 |
| 9 | 874177 |
| 10 | 3497401 |
| 11 | 14000905 |
| 12 | 56072501 |
| 13 | 224306237 |
| 14 | 897287133 |
| 15 | 3589244865 |
[1,5,33,161,729,3137,13153,54113,216817,874177, 3497401,14000905,56072501,224306237,897287133, 3589244865] |