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| n | a(n) |
|---|---|
| 1 | 120 |
| 2 | 3853 |
| 3 | 78376 |
| 4 | 1227685 |
| 5 | 16011558 |
| 6 | 180224522 |
| 7 | 1788225862 |
| 8 | 15883318341 |
| 9 | 127864299298 |
| 10 | 942615276569 |
| 11 | 6419292213136 |
| 12 | 40684542916124 |
| 13 | 241500003506194 |
| 14 | 1349966084204199 |
| 15 | 7140088927351586 |
| 16 | 35880243705890673 |
| 17 | 171932038247810370 |
[120,3853,78376,1227685,16011558,180224522, 1788225862,15883318341,127864299298,942615276569, 6419292213136,40684542916124,241500003506194, 1349966084204199,7140088927351586, 35880243705890673,171932038247810370] |