n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 68 |
4 | 586 |
5 | 5252 |
6 | 49204 |
7 | 475400 |
8 | 4723786 |
9 | 47937812 |
10 | 494786260 |
11 | 5177188040 |
12 | 54794164660 |
13 | 585565913480 |
14 | 6309889976680 |
15 | 68484312535568 |
16 | 747985368753226 |
17 | 8214968193003860 |
18 | 90669516557975524 |
19 | 1005156080857529768 |
20 | 11187435500257898836 |
21 | 124964856185950621832 |
[1,2,10,68,586,5252,49204,475400,4723786,47937812, 494786260,5177188040,54794164660,585565913480, 6309889976680,68484312535568,747985368753226, 8214968193003860,90669516557975524, 1005156080857529768,11187435500257898836, 124964856185950621832] |