n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 12 |
3 | 118 |
4 | 1880 |
5 | 63274 |
6 | 4010212 |
7 | 332200222 |
8 | 32100167600 |
9 | 3749943333714 |
10 | 559340287979196 |
11 | 106082041802123974 |
12 | 24279253761809428744 |
13 | 6438550081937270152314 |
14 | 1958379738778789723419028 |
[0,2,12,118,1880,63274,4010212,332200222, 32100167600,3749943333714,559340287979196, 106082041802123974,24279253761809428744, 6438550081937270152314,1958379738778789723419028] |