n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 8 |
6 | 18 |
7 | 94 |
8 | 220 |
9 | 1246 |
10 | 17732 |
11 | 43428 |
12 | 652914 |
13 | 4038540 |
14 | 10081266 |
15 | 63217342 |
16 | 1005967758 |
17 | 16215627560 |
18 | 41061160360 |
19 | 670829406162 |
20 | 4338894664368 |
21 | 11048157986978 |
22 | 183194101578180 |
23 | 1195118711985006 |
24 | 19999768719154092 |
25 | 862073644225241474 |
26 | 5674731128849674100 |
27 | 14568160545698020226 |
28 | 96118885585174929102 |
29 | 247025215671874138312 |
30 | 1633201998168434481118 |
[1,1,1,2,8,18,94,220,1246,17732,43428,652914, 4038540,10081266,63217342,1005967758,16215627560, 41061160360,670829406162,4338894664368, 11048157986978,183194101578180,1195118711985006, 19999768719154092,862073644225241474, 5674731128849674100,14568160545698020226, 96118885585174929102,247025215671874138312, 1633201998168434481118] |