n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 15 |
3 | 110 |
4 | 1319 |
5 | 21626 |
6 | 440406 |
7 | 10567338 |
8 | 289567071 |
9 | 8881182506 |
10 | 300677809182 |
11 | 11123151634732 |
12 | 446124758009229 |
13 | 19278179994562787 |
14 | 892894885467043254 |
15 | 44130236756271133940 |
16 | 2318466084626196805383 |
17 | 129037338117765390406606 |
18 | 7585054768393048247917776 |
19 | 469612308887467564648834414 |
[1,4,15,110,1319,21626,440406,10567338,289567071, 8881182506,300677809182,11123151634732, 446124758009229,19278179994562787, 892894885467043254,44130236756271133940, 2318466084626196805383,129037338117765390406606, 7585054768393048247917776, 469612308887467564648834414] |