n | a(n) |
---|---|
1 | 10 |
2 | 33 |
3 | 180 |
4 | 760 |
5 | 3653 |
6 | 16401 |
7 | 76330 |
8 | 348480 |
9 | 1607429 |
10 | 7373520 |
11 | 33925033 |
12 | 155833327 |
13 | 716445000 |
14 | 3292287537 |
15 | 15133013897 |
16 | 69549148120 |
17 | 319662372941 |
18 | 1469173559040 |
19 | 6752499229970 |
20 | 31034919432791 |
21 | 142639437485117 |
[10,33,180,760,3653,16401,76330,348480,1607429, 7373520,33925033,155833327,716445000,3292287537, 15133013897,69549148120,319662372941, 1469173559040,6752499229970,31034919432791, 142639437485117] |