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| n | a(n) |
|---|---|
| 1 | 94568 |
| 2 | 299968 |
| 3 | 983784 |
| 4 | 3273988 |
| 5 | 10950616 |
| 6 | 36646756 |
| 7 | 122502768 |
| 8 | 409950004 |
| 9 | 1372989004 |
| 10 | 4600574912 |
| 11 | 15418152552 |
| 12 | 51669138670 |
| 13 | 173125828256 |
| 14 | 580162209338 |
| 15 | 1944360329376 |
| 16 | 6516502657038 |
| 17 | 21839173227884 |
| 18 | 73185964436176 |
[94568,299968,983784,3273988,10950616,36646756, 122502768,409950004,1372989004,4600574912, 15418152552,51669138670,173125828256,580162209338, 1944360329376,6516502657038,21839173227884, 73185964436176] |