n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 8 |
4 | 36 |
5 | 149 |
6 | 604 |
7 | 2424 |
8 | 9705 |
9 | 38832 |
10 | 155340 |
11 | 621373 |
12 | 2485508 |
13 | 9942048 |
14 | 39768209 |
15 | 159072856 |
16 | 636291444 |
17 | 2545165797 |
18 | 10180663212 |
19 | 40722652872 |
20 | 162890611513 |
21 | 651562446080 |
22 | 2606249784348 |
23 | 10424999137421 |
24 | 41699996549716 |
25 | 166799986198896 |
[0,0,1,8,36,149,604,2424,9705,38832,155340,621373, 2485508,9942048,39768209,159072856,636291444, 2545165797,10180663212,40722652872,162890611513, 651562446080,2606249784348,10424999137421, 41699996549716,166799986198896] |