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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2357947691 |
| 2 | 794280046581 |
| 3 | 26439622160671 |
| 4 | 327381934393961 |
| 5 | 2334165173090451 |
| 6 | 11694146092834141 |
| 7 | 45848500718449031 |
| 8 | 150094635296999121 |
| 9 | 427929800129788411 |
| 10 | 1093685272684360901 |
| 11 | 2558036924386500591 |
| 12 | 5559917313492231481 |
| 13 | 11361656654439817571 |
| 14 | 22027845102081762861 |
| 15 | 40812436757196811351 |
[1,2357947691,794280046581,26439622160671, 327381934393961,2334165173090451, 11694146092834141,45848500718449031, 150094635296999121,427929800129788411, 1093685272684360901,2558036924386500591, 5559917313492231481,11361656654439817571, 22027845102081762861,40812436757196811351] |