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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 124 |
| 2 | 7688 |
| 3 | 317812 |
| 4 | 9856016 |
| 5 | 244619884 |
| 6 | 5062048280 |
| 7 | 89845298020 |
| 8 | 1396398655520 |
| 9 | 19309150041180 |
| 10 | 240550579435048 |
| 11 | 2727459472756052 |
| 12 | 28384206701341744 |
| 13 | 273049514243591756 |
| 14 | 2442767874758677048 |
[1,124,7688,317812,9856016,244619884,5062048280, 89845298020,1396398655520,19309150041180, 240550579435048,2727459472756052, 28384206701341744,273049514243591756, 2442767874758677048] |