n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 21 |
4 | 104 |
5 | 452 |
6 | 2335 |
7 | 11992 |
8 | 66810 |
9 | 385101 |
10 | 2336352 |
11 | 14738380 |
12 | 96831730 |
13 | 659809115 |
14 | 4657075074 |
15 | 33974259046 |
16 | 255781455848 |
17 | 1984239830571 |
18 | 15839628564349 |
19 | 129951186405574 |
20 | 1094486382191624 |
21 | 9453318070371926 |
22 | 83654146992936350 |
23 | 757769011659766015 |
24 | 7020652591448497490 |
[1,6,21,104,452,2335,11992,66810,385101,2336352, 14738380,96831730,659809115,4657075074, 33974259046,255781455848,1984239830571, 15839628564349,129951186405574,1094486382191624, 9453318070371926,83654146992936350, 757769011659766015,7020652591448497490] |