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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 533 |
| 3 | 22873 |
| 4 | 1064576 |
| 5 | 50796983 |
| 6 | 2441987149 |
| 7 | 117656540512 |
| 8 | 5672528575545 |
| 9 | 273541357254277 |
| 10 | 13191518965300160 |
| 11 | 636171495829068099 |
| 12 | 30680036092304563369 |
| 13 | 1479579136691648516016 |
| 14 | 71354395560692698401005 |
| 15 | 3441147782121276015384833 |
| 16 | 165953315828852845775456128 |
[1,16,533,22873,1064576,50796983,2441987149, 117656540512,5672528575545,273541357254277, 13191518965300160,636171495829068099, 30680036092304563369,1479579136691648516016, 71354395560692698401005,3441147782121276015384833, 165953315828852845775456128] |