n | a(n) |
---|---|
1 | 6 |
2 | 36 |
3 | 90 |
4 | 261 |
5 | 624 |
6 | 1482 |
7 | 3808 |
8 | 9512 |
9 | 23280 |
10 | 58080 |
11 | 144996 |
12 | 359100 |
13 | 891940 |
14 | 2220008 |
15 | 5514460 |
16 | 13697376 |
17 | 34051032 |
18 | 84622140 |
19 | 210256020 |
20 | 522523332 |
21 | 1298558624 |
22 | 3226860476 |
23 | 8018895456 |
24 | 19927723520 |
25 | 49521161364 |
26 | 123062138780 |
27 | 305817249300 |
[6,36,90,261,624,1482,3808,9512,23280,58080, 144996,359100,891940,2220008,5514460,13697376, 34051032,84622140,210256020,522523332,1298558624, 3226860476,8018895456,19927723520,49521161364, 123062138780,305817249300] |