n | a(n) |
---|---|
1 | 0 |
2 | 9 |
3 | 54 |
4 | 315 |
5 | 1836 |
6 | 10701 |
7 | 62370 |
8 | 363519 |
9 | 2118744 |
10 | 12348945 |
11 | 71974926 |
12 | 419500611 |
13 | 2445028740 |
14 | 14250671829 |
15 | 83059002234 |
16 | 484103341575 |
17 | 2821561047216 |
18 | 16445262941721 |
19 | 95850016603110 |
20 | 558654836676939 |
21 | 3256079003458524 |
22 | 18977819184074205 |
23 | 110610836100986706 |
[0,9,54,315,1836,10701,62370,363519,2118744, 12348945,71974926,419500611,2445028740, 14250671829,83059002234,484103341575, 2821561047216,16445262941721,95850016603110, 558654836676939,3256079003458524, 18977819184074205,110610836100986706] |