n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 56 |
3 | 431 |
4 | 2931 |
5 | 18556 |
6 | 112306 |
7 | 659181 |
8 | 3784181 |
9 | 21362306 |
10 | 119018556 |
11 | 656127931 |
12 | 3585815431 |
13 | 19454956056 |
14 | 104904174806 |
15 | 562667846681 |
16 | 3004074096681 |
17 | 15974044799806 |
18 | 84638595581056 |
19 | 447034835815431 |
20 | 2354383468627931 |
21 | 12367963790893556 |
22 | 64820051193237306 |
[1,6,56,431,2931,18556,112306,659181,3784181, 21362306,119018556,656127931,3585815431, 19454956056,104904174806,562667846681, 3004074096681,15974044799806,84638595581056, 447034835815431,2354383468627931, 12367963790893556,64820051193237306] |