n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 80 |
4 | 772 |
5 | 8648 |
6 | 111592 |
7 | 1631360 |
8 | 26518672 |
9 | 472528160 |
10 | 9139219360 |
11 | 190461416192 |
12 | 4250569655872 |
13 | 101040920561792 |
14 | 2546488866632320 |
15 | 67772341398044672 |
16 | 1898177372174512384 |
17 | 55780954727160472064 |
18 | 1715291443214323558912 |
19 | 55062161002484359565312 |
[1,2,10,80,772,8648,111592,1631360,26518672, 472528160,9139219360,190461416192,4250569655872, 101040920561792,2546488866632320, 67772341398044672,1898177372174512384, 55780954727160472064,1715291443214323558912, 55062161002484359565312] |