n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 36 |
3 | 146 |
4 | 561 |
5 | 1812 |
6 | 5552 |
7 | 15372 |
8 | 40677 |
9 | 100562 |
10 | 239316 |
11 | 541926 |
12 | 1188341 |
13 | 2507736 |
14 | 5149056 |
15 | 10251560 |
16 | 19935135 |
17 | 37790610 |
18 | 70187260 |
19 | 127580310 |
20 | 227779695 |
21 | 399218820 |
22 | 688680720 |
23 | 1169024220 |
24 | 1956567795 |
25 | 3228473430 |
[1,6,36,146,561,1812,5552,15372,40677,100562, 239316,541926,1188341,2507736,5149056,10251560, 19935135,37790610,70187260,127580310,227779695, 399218820,688680720,1169024220,1956567795, 3228473430] |