n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 9 |
6 | 39 |
7 | 66 |
8 | 318 |
9 | 627 |
10 | 3213 |
11 | 7182 |
12 | 38898 |
13 | 96237 |
14 | 548883 |
15 | 1478142 |
16 | 8843778 |
17 | 25615647 |
18 | 160178913 |
19 | 494550162 |
20 | 3221341038 |
21 | 10527969537 |
22 | 71221636863 |
23 | 245012506362 |
24 | 1716978047238 |
25 | 6188875533387 |
26 | 44822878860213 |
27 | 168635167816662 |
28 | 1259693955204138 |
[1,1,2,6,9,39,66,318,627,3213,7182,38898,96237, 548883,1478142,8843778,25615647,160178913, 494550162,3221341038,10527969537,71221636863, 245012506362,1716978047238,6188875533387, 44822878860213,168635167816662,1259693955204138] |