n | a(n) |
---|---|
8 | 1 |
9 | 12 |
10 | 94 |
11 | 604 |
12 | 3463 |
13 | 18440 |
14 | 93274 |
15 | 454412 |
16 | 2151673 |
17 | 9964500 |
18 | 45335002 |
19 | 203303760 |
20 | 900901387 |
21 | 3952468348 |
22 | 17194102478 |
23 | 74257185512 |
24 | 318693463933 |
25 | 1360298775524 |
26 | 5778468266446 |
27 | 24442845038580 |
[1,12,94,604,3463,18440,93274,454412,2151673, 9964500,45335002,203303760,900901387,3952468348, 17194102478,74257185512,318693463933, 1360298775524,5778468266446,24442845038580] |