n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 10 |
4 | 36 |
5 | 125 |
6 | 454 |
7 | 1722 |
8 | 6609 |
9 | 25843 |
10 | 102590 |
11 | 411104 |
12 | 1663187 |
13 | 6782912 |
14 | 27831566 |
15 | 114882503 |
16 | 476493101 |
17 | 1985031001 |
18 | 8300902795 |
19 | 34833257984 |
20 | 146612269660 |
21 | 618823561050 |
22 | 2618412456313 |
23 | 11104706758264 |
24 | 47192773402321 |
25 | 200945045039469 |
26 | 857117045058559 |
27 | 3661934564079485 |
[1,1,4,10,36,125,454,1722,6609,25843,102590, 411104,1663187,6782912,27831566,114882503, 476493101,1985031001,8300902795,34833257984, 146612269660,618823561050,2618412456313, 11104706758264,47192773402321,200945045039469, 857117045058559,3661934564079485] |