n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 9 |
4 | 46 |
5 | 117 |
6 | 636 |
7 | 2596 |
8 | 13343 |
9 | 66452 |
10 | 354806 |
11 | 1898800 |
12 | 10452050 |
13 | 58080269 |
14 | 327389928 |
15 | 1863061322 |
16 | 10707246833 |
17 | 62028855007 |
18 | 362078074528 |
19 | 2127680924575 |
20 | 12580327500008 |
21 | 74800656700824 |
22 | 447053889525102 |
23 | 2684568476124840 |
24 | 16191874238303244 |
[1,6,9,46,117,636,2596,13343,66452,354806,1898800, 10452050,58080269,327389928,1863061322, 10707246833,62028855007,362078074528, 2127680924575,12580327500008,74800656700824, 447053889525102,2684568476124840, 16191874238303244] |