n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 30 |
4 | 226 |
5 | 1990 |
6 | 19414 |
7 | 203455 |
8 | 2248355 |
9 | 25887399 |
10 | 307993015 |
11 | 3763786811 |
12 | 47032778955 |
13 | 598933188955 |
14 | 7751562502555 |
15 | 101741582076580 |
16 | 1351906409905480 |
17 | 18159677984049580 |
18 | 246298405721739580 |
19 | 3369517588450715680 |
20 | 46457194476711692080 |
[1,5,30,226,1990,19414,203455,2248355,25887399, 307993015,3763786811,47032778955,598933188955, 7751562502555,101741582076580,1351906409905480, 18159677984049580,246298405721739580, 3369517588450715680,46457194476711692080] |