n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 21 |
4 | 58 |
5 | 178 |
6 | 494 |
7 | 1365 |
8 | 3640 |
9 | 9533 |
10 | 24401 |
11 | 61384 |
12 | 151958 |
13 | 370335 |
14 | 890565 |
15 | 2113913 |
16 | 4959199 |
17 | 11505799 |
18 | 26420628 |
19 | 60082005 |
20 | 135386341 |
21 | 302448477 |
22 | 670148898 |
23 | 1473387787 |
24 | 3215519032 |
25 | 6968266907 |
26 | 14999453058 |
27 | 32079714584 |
28 | 68187859040 |
29 | 144083404856 |
30 | 302727633735 |
31 | 632579826174 |
[1,1,6,21,58,178,494,1365,3640,9533,24401,61384, 151958,370335,890565,2113913,4959199,11505799, 26420628,60082005,135386341,302448477,670148898, 1473387787,3215519032,6968266907,14999453058, 32079714584,68187859040,144083404856,302727633735, 632579826174] |