n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 32 |
5 | 116 |
6 | 450 |
7 | 1727 |
8 | 6837 |
9 | 28060 |
10 | 115565 |
11 | 481369 |
12 | 2040532 |
13 | 8708109 |
14 | 37423501 |
15 | 162231361 |
16 | 707449871 |
17 | 3102033992 |
18 | 13670214098 |
19 | 60514683165 |
20 | 269035757552 |
21 | 1200266720500 |
22 | 5373244040392 |
23 | 24132690138088 |
24 | 108682252595942 |
25 | 490777845043766 |
26 | 2221711774517289 |
27 | 10079890026903695 |
[1,1,3,10,32,116,450,1727,6837,28060,115565, 481369,2040532,8708109,37423501,162231361, 707449871,3102033992,13670214098,60514683165, 269035757552,1200266720500,5373244040392, 24132690138088,108682252595942,490777845043766, 2221711774517289,10079890026903695] |